MdePkg/BaseCpuLib: Remove assembly for CpuFlushTlb

For different compilers, both IA32 and X64 can use
Ia32/CpuFlushTlbGcc.c, which is C code (no inline assembly code).
To simplify, remove other assemly file for CpuFlushTlb,
and rename Ia32/CpuFlushTlbGcc.c to X86CpuFlushTlb.c.

Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Ray Ni <ray.ni@intel.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>

MdePkg/Library/BaseCpuLib/Ia32/CpuFlushTlb.c

@@ -1,25 +0,0 @@
-/** @file
-  CpuFlushTlb function.
-
-  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
-  SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-/**
-  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
-
-  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
-
-**/
-VOID
-EFIAPI
-CpuFlushTlb (
-  VOID
-  )
-{
-  _asm {
-    mov     eax, cr3
-    mov     cr3, eax
-  }
-}

MdePkg/Library/BaseCpuLib/Ia32/CpuFlushTlb.nasm

@@ -1,31 +0,0 @@
-;------------------------------------------------------------------------------ ;
-; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
-; SPDX-License-Identifier: BSD-2-Clause-Patent
-;
-; Module Name:
-;
-;   CpuFlushTlb.Asm
-;
-; Abstract:
-;
-;   CpuFlushTlb function
-;
-; Notes:
-;
-;------------------------------------------------------------------------------
-
-    SECTION .text
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; CpuFlushTlb (
-;   VOID
-;   );
-;------------------------------------------------------------------------------
-global ASM_PFX(CpuFlushTlb)
-ASM_PFX(CpuFlushTlb):
-    mov     eax, cr3
-    mov     cr3, eax                    ; moving to CR3 flushes TLB
-    ret
-

MdePkg/Library/BaseCpuLib/Ia32/CpuFlushTlbGcc.c

@@ -1,25 +0,0 @@
-/** @file
-  CpuFlushTlb function for Ia32/X64 GCC.
-
-  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
-  Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
-  SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include <Library/BaseLib.h>
-
-/**
-  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
-
-  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
-
-**/
-VOID
-EFIAPI
-CpuFlushTlb (
-  VOID
-  )
-{
-  AsmWriteCr3 (AsmReadCr3 ());
-}