Revert "UefiCpuPkg: Has APs in 64 bit long-mode before booting to OS."

This reverts commit 73ccde8f6d since it
results in a hang of the IA32 processor and needs further clean-up.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4234
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Yuanhao Xie <yuanhao.xie@intel.com>

UefiCpuPkg/Library/MpInitLib/Ia32/CreatePageTable.c

@@ -1,27 +0,0 @@
-/** @file
-  Function to create page talbe.
-  Only create page table for x64, and leave the CreatePageTable empty for Ia32.
-
-  Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
-  SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include <Base.h>
-
-/**
-  Only create page table for x64, and leave the CreatePageTable empty for Ia32.
-
-  @param[in]      LinearAddress  The start of the linear address range.
-  @param[in]      Length         The length of the linear address range.
-
-  @return The page table to be created.
-**/
-UINTN
-CreatePageTable (
-  IN UINTN  Address,
-  IN UINTN  Length
-  )
-{
-  return 0;
-}