diff --git a/backend/v1/backend.pb.go b/backend/v1/backend.pb.go
deleted file mode 100644
index 457e7ed65..000000000
--- a/backend/v1/backend.pb.go
+++ /dev/null
@@ -1,327 +0,0 @@
-//
-//Copyright (c) 2020 Docker Inc.
-//
-//Permission is hereby granted, free of charge, to any person
-//obtaining a copy of this software and associated documentation
-//files (the "Software"), to deal in the Software without
-//restriction, including without limitation the rights to use, copy,
-//modify, merge, publish, distribute, sublicense, and/or sell copies
-//of the Software, and to permit persons to whom the Software is
-//furnished to do so, subject to the following conditions:
-//
-//The above copyright notice and this permission notice shall be
-//included in all copies or substantial portions of the Software.
-//
-//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-//EXPRESS OR IMPLIED,
-//INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-//IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-//HOLDERS BE LIABLE FOR ANY CLAIM,
-//DAMAGES OR OTHER LIABILITY,
-//WHETHER IN AN ACTION OF CONTRACT,
-//TORT OR OTHERWISE,
-//ARISING FROM, OUT OF OR IN CONNECTION WITH
-//THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.22.0
-// 	protoc        v3.11.2
-// source: backend/v1/backend.proto
-
-package v1
-
-import (
-	context "context"
-	reflect "reflect"
-	sync "sync"
-
-	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-)
-
-const (
-	// Verify that this generated code is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-	// Verify that runtime/protoimpl is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-)
-
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
-type BackendInformationRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-}
-
-func (x *BackendInformationRequest) Reset() {
-	*x = BackendInformationRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_backend_v1_backend_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *BackendInformationRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*BackendInformationRequest) ProtoMessage() {}
-
-func (x *BackendInformationRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_backend_v1_backend_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use BackendInformationRequest.ProtoReflect.Descriptor instead.
-func (*BackendInformationRequest) Descriptor() ([]byte, []int) {
-	return file_backend_v1_backend_proto_rawDescGZIP(), []int{0}
-}
-
-type BackendInformationResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-}
-
-func (x *BackendInformationResponse) Reset() {
-	*x = BackendInformationResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_backend_v1_backend_proto_msgTypes[1]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *BackendInformationResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*BackendInformationResponse) ProtoMessage() {}
-
-func (x *BackendInformationResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_backend_v1_backend_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use BackendInformationResponse.ProtoReflect.Descriptor instead.
-func (*BackendInformationResponse) Descriptor() ([]byte, []int) {
-	return file_backend_v1_backend_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *BackendInformationResponse) GetId() string {
-	if x != nil {
-		return x.Id
-	}
-	return ""
-}
-
-var File_backend_v1_backend_proto protoreflect.FileDescriptor
-
-var file_backend_v1_backend_proto_rawDesc = []byte{
-	0x0a, 0x18, 0x62, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x2f, 0x76, 0x31, 0x2f, 0x62, 0x61, 0x63,
-	0x6b, 0x65, 0x6e, 0x64, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x19, 0x63, 0x6f, 0x6d, 0x2e,
-	0x64, 0x6f, 0x63, 0x6b, 0x65, 0x72, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x62, 0x61, 0x63, 0x6b, 0x65,
-	0x6e, 0x64, 0x2e, 0x76, 0x31, 0x22, 0x1b, 0x0a, 0x19, 0x42, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64,
-	0x49, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65,
-	0x73, 0x74, 0x22, 0x2c, 0x0a, 0x1a, 0x42, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x49, 0x6e, 0x66,
-	0x6f, 0x72, 0x6d, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
-	0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64,
-	0x32, 0x8d, 0x01, 0x0a, 0x07, 0x42, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x12, 0x81, 0x01, 0x0a,
-	0x12, 0x42, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x49, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, 0x74,
-	0x69, 0x6f, 0x6e, 0x12, 0x34, 0x2e, 0x63, 0x6f, 0x6d, 0x2e, 0x64, 0x6f, 0x63, 0x6b, 0x65, 0x72,
-	0x2e, 0x61, 0x70, 0x69, 0x2e, 0x62, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x2e, 0x76, 0x31, 0x2e,
-	0x42, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x49, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, 0x74, 0x69,
-	0x6f, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x35, 0x2e, 0x63, 0x6f, 0x6d, 0x2e,
-	0x64, 0x6f, 0x63, 0x6b, 0x65, 0x72, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x62, 0x61, 0x63, 0x6b, 0x65,
-	0x6e, 0x64, 0x2e, 0x76, 0x31, 0x2e, 0x42, 0x61, 0x63, 0x6b, 0x65, 0x6e, 0x64, 0x49, 0x6e, 0x66,
-	0x6f, 0x72, 0x6d, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
-	0x42, 0x25, 0x5a, 0x23, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x64,
-	0x6f, 0x63, 0x6b, 0x65, 0x72, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x62, 0x61, 0x63, 0x6b, 0x65, 0x6e,
-	0x64, 0x2f, 0x76, 0x31, 0x3b, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
-
-var (
-	file_backend_v1_backend_proto_rawDescOnce sync.Once
-	file_backend_v1_backend_proto_rawDescData = file_backend_v1_backend_proto_rawDesc
-)
-
-func file_backend_v1_backend_proto_rawDescGZIP() []byte {
-	file_backend_v1_backend_proto_rawDescOnce.Do(func() {
-		file_backend_v1_backend_proto_rawDescData = protoimpl.X.CompressGZIP(file_backend_v1_backend_proto_rawDescData)
-	})
-	return file_backend_v1_backend_proto_rawDescData
-}
-
-var file_backend_v1_backend_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var file_backend_v1_backend_proto_goTypes = []interface{}{
-	(*BackendInformationRequest)(nil),  // 0: com.docker.api.backend.v1.BackendInformationRequest
-	(*BackendInformationResponse)(nil), // 1: com.docker.api.backend.v1.BackendInformationResponse
-}
-var file_backend_v1_backend_proto_depIdxs = []int32{
-	0, // 0: com.docker.api.backend.v1.Backend.BackendInformation:input_type -> com.docker.api.backend.v1.BackendInformationRequest
-	1, // 1: com.docker.api.backend.v1.Backend.BackendInformation:output_type -> com.docker.api.backend.v1.BackendInformationResponse
-	1, // [1:2] is the sub-list for method output_type
-	0, // [0:1] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_backend_v1_backend_proto_init() }
-func file_backend_v1_backend_proto_init() {
-	if File_backend_v1_backend_proto != nil {
-		return
-	}
-	if !protoimpl.UnsafeEnabled {
-		file_backend_v1_backend_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*BackendInformationRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_backend_v1_backend_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*BackendInformationResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_backend_v1_backend_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   2,
-			NumExtensions: 0,
-			NumServices:   1,
-		},
-		GoTypes:           file_backend_v1_backend_proto_goTypes,
-		DependencyIndexes: file_backend_v1_backend_proto_depIdxs,
-		MessageInfos:      file_backend_v1_backend_proto_msgTypes,
-	}.Build()
-	File_backend_v1_backend_proto = out.File
-	file_backend_v1_backend_proto_rawDesc = nil
-	file_backend_v1_backend_proto_goTypes = nil
-	file_backend_v1_backend_proto_depIdxs = nil
-}
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ context.Context
-var _ grpc.ClientConnInterface
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion6
-
-// BackendClient is the client API for Backend service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
-type BackendClient interface {
-	// BackendInformation returns implementation specific information on the backend.
-	BackendInformation(ctx context.Context, in *BackendInformationRequest, opts ...grpc.CallOption) (*BackendInformationResponse, error)
-}
-
-type backendClient struct {
-	cc grpc.ClientConnInterface
-}
-
-func NewBackendClient(cc grpc.ClientConnInterface) BackendClient {
-	return &backendClient{cc}
-}
-
-func (c *backendClient) BackendInformation(ctx context.Context, in *BackendInformationRequest, opts ...grpc.CallOption) (*BackendInformationResponse, error) {
-	out := new(BackendInformationResponse)
-	err := c.cc.Invoke(ctx, "/com.docker.api.backend.v1.Backend/BackendInformation", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// BackendServer is the server API for Backend service.
-type BackendServer interface {
-	// BackendInformation returns implementation specific information on the backend.
-	BackendInformation(context.Context, *BackendInformationRequest) (*BackendInformationResponse, error)
-}
-
-// UnimplementedBackendServer can be embedded to have forward compatible implementations.
-type UnimplementedBackendServer struct {
-}
-
-func (*UnimplementedBackendServer) BackendInformation(context.Context, *BackendInformationRequest) (*BackendInformationResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method BackendInformation not implemented")
-}
-
-func RegisterBackendServer(s *grpc.Server, srv BackendServer) {
-	s.RegisterService(&_Backend_serviceDesc, srv)
-}
-
-func _Backend_BackendInformation_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(BackendInformationRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(BackendServer).BackendInformation(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/com.docker.api.backend.v1.Backend/BackendInformation",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(BackendServer).BackendInformation(ctx, req.(*BackendInformationRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-var _Backend_serviceDesc = grpc.ServiceDesc{
-	ServiceName: "com.docker.api.backend.v1.Backend",
-	HandlerType: (*BackendServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "BackendInformation",
-			Handler:    _Backend_BackendInformation_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "backend/v1/backend.proto",
-}
diff --git a/backend/v1/backend.proto b/backend/v1/backend.proto
deleted file mode 100644
index 29f6d810a..000000000
--- a/backend/v1/backend.proto
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
-	Copyright (c) 2020 Docker Inc.
-
-	Permission is hereby granted, free of charge, to any person
-	obtaining a copy of this software and associated documentation
-	files (the "Software"), to deal in the Software without
-	restriction, including without limitation the rights to use, copy,
-	modify, merge, publish, distribute, sublicense, and/or sell copies
-	of the Software, and to permit persons to whom the Software is
-	furnished to do so, subject to the following conditions:
-
-	The above copyright notice and this permission notice shall be
-	included in all copies or substantial portions of the Software.
-
-	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-	EXPRESS OR IMPLIED,
-	INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-	IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-	HOLDERS BE LIABLE FOR ANY CLAIM,
-	DAMAGES OR OTHER LIABILITY,
-	WHETHER IN AN ACTION OF CONTRACT,
-	TORT OR OTHERWISE,
-	ARISING FROM, OUT OF OR IN CONNECTION WITH
-	THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-syntax = "proto3";
-
-package com.docker.api.backend.v1;
-
-option go_package = "github.com/docker/api/backend/v1;v1";
-
-service Backend {
-	// BackendInformation returns implementation specific information on the backend.
-	rpc BackendInformation(BackendInformationRequest) returns (BackendInformationResponse);
-}
-
-message BackendInformationRequest {
-}
-
-message BackendInformationResponse {
-	string id = 1;
-}
diff --git a/backend/v1/doc.go b/backend/v1/doc.go
deleted file mode 100644
index 111644097..000000000
--- a/backend/v1/doc.go
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-	Copyright (c) 2020 Docker Inc.
-
-	Permission is hereby granted, free of charge, to any person
-	obtaining a copy of this software and associated documentation
-	files (the "Software"), to deal in the Software without
-	restriction, including without limitation the rights to use, copy,
-	modify, merge, publish, distribute, sublicense, and/or sell copies
-	of the Software, and to permit persons to whom the Software is
-	furnished to do so, subject to the following conditions:
-
-	The above copyright notice and this permission notice shall be
-	included in all copies or substantial portions of the Software.
-
-	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-	EXPRESS OR IMPLIED,
-	INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-	IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-	HOLDERS BE LIABLE FOR ANY CLAIM,
-	DAMAGES OR OTHER LIABILITY,
-	WHETHER IN AN ACTION OF CONTRACT,
-	TORT OR OTHERWISE,
-	ARISING FROM, OUT OF OR IN CONNECTION WITH
-	THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-package v1