OvmfPkg: remove LegacyBootManagerLib

LegacyBootManagerLib is not used by any platform at this point, remove it.

This patch removes mentions of the following CSM resources from the source
code:

- GUIDs (protocols or otherwise):
  - gEfiLegacyBiosProtocolGuid
  - gEfiLegacyDevOrderVariableGuid

- headers:
  - Guid/LegacyDevOrder.h
  - Protocol/LegacyBios.h

which extends the list of resources scheduled for removal to:

- GUIDs (protocols or otherwise):
  - gEfiLegacyBiosProtocolGuid
  - gEfiLegacyDevOrderVariableGuid

- headers:
  - Guid/LegacyDevOrder.h
  - Protocol/LegacyBios.h

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4588
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20231110235820.644381-5-lersek@redhat.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Corvin Köhne <corvink@FreeBSD.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>

OvmfPkg/Csm/LegacyBootManagerLib/InternalLegacyBm.h

@@ -1,60 +0,0 @@
-/** @file
-
-Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
-SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#ifndef _INTERNAL_LEGACY_BM_H_
-#define _INTERNAL_LEGACY_BM_H_
-
-#include <PiDxe.h>
-#include <Guid/LegacyDevOrder.h>
-#include <Guid/GlobalVariable.h>
-#include <Protocol/LegacyBios.h>
-#include <Protocol/PciRootBridgeIo.h>
-#include <Protocol/PciIo.h>
-#include <Library/BaseLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/DebugLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiRuntimeServicesTableLib.h>
-#include <Library/UefiLib.h>
-#include <Library/DevicePathLib.h>
-#include <Library/UefiBootManagerLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/PrintLib.h>
-#include <Library/PerformanceLib.h>
-
-#pragma pack(1)
-typedef struct {
-  UINT16    BbsIndex;
-} LEGACY_BM_BOOT_OPTION_BBS_DATA;
-#pragma pack()
-
-/**
-  Boot the legacy system with the boot option.
-
-  @param  BootOption The legacy boot option which have BBS device path
-                     On return, BootOption->Status contains the boot status.
-                     EFI_UNSUPPORTED    There is no legacybios protocol, do not support
-                                        legacy boot.
-                     EFI_STATUS         The status of LegacyBios->LegacyBoot ().
-**/
-VOID
-EFIAPI
-LegacyBmBoot (
-  IN  EFI_BOOT_MANAGER_LOAD_OPTION  *BootOption
-  );
-
-/**
-  Refresh all legacy boot options.
-
-**/
-VOID
-EFIAPI
-LegacyBmRefreshAllBootOption (
-  VOID
-  );
-
-#endif // _INTERNAL_LEGACY_BM_H_

OvmfPkg/Csm/LegacyBootManagerLib/LegacyBootManagerLib.inf

@@ -1,57 +0,0 @@
-## @file
-#  Legacy Boot Manager module is library for BDS phase.
-#
-#  Copyright (c) 2011 - 2019, Intel Corporation. All rights reserved.<BR>
-#  SPDX-License-Identifier: BSD-2-Clause-Patent
-#
-##
-
-[Defines]
-  INF_VERSION                    = 0x00010005
-  BASE_NAME                      = LegacyBootManagerLib
-  MODULE_UNI_FILE                = LegacyBootManagerLib.uni
-  FILE_GUID                      = D1BBB810-6A9E-40E0-87CB-65EAD2AA2A09
-  MODULE_TYPE                    = DXE_DRIVER
-  VERSION_STRING                 = 1.0
-  LIBRARY_CLASS                  = NULL|DXE_DRIVER UEFI_APPLICATION
-  CONSTRUCTOR                    = LegacyBootManagerLibConstructor
-
-#
-# The following information is for reference only and not required by the build tools.
-#
-#  VALID_ARCHITECTURES           = IA32 X64 EBC
-#
-
-[Sources]
-  LegacyBm.c
-  InternalLegacyBm.h
-
-[Packages]
-  MdePkg/MdePkg.dec
-  MdeModulePkg/MdeModulePkg.dec
-  OvmfPkg/OvmfPkg.dec
-
-[LibraryClasses]
-  BaseLib
-  BaseMemoryLib
-  UefiBootServicesTableLib
-  UefiRuntimeServicesTableLib
-  DevicePathLib
-  MemoryAllocationLib
-  UefiLib
-  DebugLib
-  PrintLib
-  PerformanceLib
-  UefiBootManagerLib
-
-[Guids]
-  gEfiGlobalVariableGuid                        ## SOMETIMES_PRODUCES ## Variable:L"Boot####" (Boot option variable)
-                                                ## SOMETIMES_CONSUMES ## Variable:L"BootOrder" (The boot option array)
-  gEfiLegacyDevOrderVariableGuid
-
-[Protocols]
-  gEfiLegacyBiosProtocolGuid                    ## SOMETIMES_CONSUMES
-
-[FeaturePcd]
-
-[Pcd]

OvmfPkg/Csm/LegacyBootManagerLib/LegacyBootManagerLib.uni

@@ -1,20 +0,0 @@
-// /** @file
-// Legacy Boot Manager module is library for BDS phase.
-//
-// Legacy Boot Manager module is library for BDS phase.
-//
-// Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
-//
-// SPDX-License-Identifier: BSD-2-Clause-Patent
-//
-// **/
-
-#string STR_MODULE_ABSTRACT
-#language en-US
-"Legacy Boot Manager module is library for BDS phase."
-
-#string STR_MODULE_DESCRIPTION
-#language en-US
-"Legacy Boot Manager module is library for BDS phase."
-
-