ArmPlatformPkg/PrePi: remove global variable allocation from lowlevel init

Now that we dropped all ArmPlatformGlobalVariableLib dependencies,
there is no longer a need to allocate and clear out the global
variable region in the PrePi init code. So remove it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18992 6f19259b-4bc3-4df7-8a09-765794883524

ArmPlatformPkg/PrePi/MainMPCore.c

@@ -22,7 +22,6 @@ VOID
 PrimaryMain (
   IN  UINTN                     UefiMemoryBase,
   IN  UINTN                     StacksBase,
-  IN  UINTN                     GlobalVariableBase,
   IN  UINT64                    StartTimeStamp
   )
 {
@@ -35,7 +34,7 @@ PrimaryMain (
     ArmGicSendSgiTo (PcdGet32(PcdGicDistributorBase), ARM_GIC_ICDSGIR_FILTER_EVERYONEELSE, 0x0E, PcdGet32 (PcdGicSgiIntId));
   }
 
-  PrePiMain (UefiMemoryBase, StacksBase, GlobalVariableBase, StartTimeStamp);
+  PrePiMain (UefiMemoryBase, StacksBase, StartTimeStamp);
 
   // We must never return
   ASSERT(FALSE);