MdeModulePkg: Remove X86 ASM and S files

NASM has replaced ASM and S files.
1. Remove ASM from all modules.
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: Star Zeng <star.zeng@intel.com>

MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/BootScriptExecutorDxe.inf

@@ -4,7 +4,7 @@
 # This is a standalone Boot Script Executor. Standalone means it does not
 # depends on any PEI or DXE service.
 #
-# Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
 # Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
 #
 # This program and the accompanying materials are
@@ -40,14 +40,10 @@
 [Sources.X64]
   X64/SetIdtEntry.c  
   X64/S3Asm.nasm
-  X64/S3Asm.asm
-  X64/S3Asm.S
   
 [Sources.Ia32]
   IA32/SetIdtEntry.c   
   IA32/S3Asm.nasm
-  IA32/S3Asm.asm
-  IA32/S3Asm.S
 
 [Packages]
   MdePkg/MdePkg.dec