Revert "Add 2 APIs in SmmCpuFeaturesLib."

This reverts SVN r18958 / git commit
9daa916dd1.

The patch series had been fully reviewed on edk2-devel, but it got
committed as a single squashed patch. Revert it for now.

Link: http://thread.gmane.org/gmane.comp.bios.edk2.devel/4951
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18978 6f19259b-4bc3-4df7-8a09-765794883524

UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c

@@ -770,7 +770,7 @@ Gen4GPageTable (
   //
   // Allocate the page table
   //
-  PageTable = AllocatePageTableMemory (ExtraPages + 5 + PagesNeeded);
+  PageTable = AllocatePages (ExtraPages + 5 + PagesNeeded);
   ASSERT (PageTable != NULL);
 
   PageTable = (VOID *)((UINTN)PageTable + EFI_PAGES_TO_SIZE (ExtraPages));
@@ -872,7 +872,7 @@ SetCacheability (
     //
     // Allocate a page from SMRAM
     //
-    NewPageTableAddress = AllocatePageTableMemory (1);
+    NewPageTableAddress = AllocatePages (1);
     ASSERT (NewPageTableAddress != NULL);
 
     NewPageTable = (UINT64 *)NewPageTableAddress;