UefiCpuPkg: Remove X86 ASM and S files

NASM has replaced ASM and S files.
1. Remove ASM from all modules expect for the ones in ResetVector directory.
The ones in ResetVector directory are included by Vtf0.nasmb. They are
also nasm style.
2. Remove S files from the drivers only.
3. https://bugzilla.tianocore.org/show_bug.cgi?id=881
After NASM is updated, S files can be removed from Library.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

UefiCpuPkg/Library/CpuExceptionHandlerLib/SmmCpuExceptionHandlerLib.inf

@@ -1,7 +1,7 @@
 ## @file
 #  CPU Exception Handler library instance for SMM modules.
 #
-#  Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>
 #  This program and the accompanying materials
 #  are licensed and made available under the terms and conditions of the BSD License
 #  which accompanies this distribution.  The full text of the license may be found at
@@ -28,7 +28,6 @@
 #
 
 [Sources.Ia32]
-  Ia32/ExceptionHandlerAsm.asm
   Ia32/ExceptionHandlerAsm.nasm
   Ia32/ExceptionTssEntryAsm.nasm
   Ia32/ExceptionHandlerAsm.S
@@ -36,7 +35,6 @@
   Ia32/ArchInterruptDefs.h
 
 [Sources.X64]
-  X64/ExceptionHandlerAsm.asm
   X64/ExceptionHandlerAsm.nasm
   X64/ExceptionHandlerAsm.S
   X64/ArchExceptionHandler.c