ArmPkg/ArmMmuLib ARM: remove dummy constructor

Make the CONSTRUCTOR define in the .INF AARCH64 only, so we can drop
the empty stub that exists for ARM.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>

ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibCore.c

@@ -830,12 +830,3 @@ ArmClearMemoryRegionReadOnly (
 {
   return ArmSetMemoryAttributes (BaseAddress, Length, __EFI_MEMORY_RWX);
 }
-
-RETURN_STATUS
-EFIAPI
-ArmMmuBaseLibConstructor (
-  VOID
-  )
-{
-  return RETURN_SUCCESS;
-}

ArmPkg/Library/ArmMmuLib/ArmMmuBaseLib.inf

@@ -14,6 +14,8 @@
   MODULE_TYPE                    = BASE
   VERSION_STRING                 = 1.0
   LIBRARY_CLASS                  = ArmMmuLib
+
+[Defines.AARCH64]
   CONSTRUCTOR                    = ArmMmuBaseLibConstructor
 
 [Sources.AARCH64]