Revert "[X86] Create extra prolog/epilog for stack realignment"

This reverts commit e4c1dfe.

Author: LuoYuanke

llvm/lib/Target/X86/CMakeLists.txt

@@ -26,7 +26,6 @@ endif()
 add_public_tablegen_target(X86CommonTableGen)
 
 set(sources
-  X86ArgumentStackSlotRebase.cpp
   X86AsmPrinter.cpp
   X86AvoidTrailingCall.cpp
   X86CallFrameOptimization.cpp

llvm/lib/Target/X86/X86.h

@@ -166,13 +166,11 @@ FunctionPass *createX86LoadValueInjectionLoadHardeningPass();
 FunctionPass *createX86LoadValueInjectionRetHardeningPass();
 FunctionPass *createX86SpeculativeLoadHardeningPass();
 FunctionPass *createX86SpeculativeExecutionSideEffectSuppression();
-FunctionPass *createX86ArgumentStackSlotPass();
 
 void initializeEvexToVexInstPassPass(PassRegistry &);
 void initializeFPSPass(PassRegistry &);
 void initializeFixupBWInstPassPass(PassRegistry &);
 void initializeFixupLEAPassPass(PassRegistry &);
-void initializeX86ArgumentStackSlotPassPass(PassRegistry &);
 void initializeX86FixupInstTuningPassPass(PassRegistry &);
 void initializeWinEHStatePassPass(PassRegistry &);
 void initializeX86AvoidSFBPassPass(PassRegistry &);