[crankshaft] [ia32] Remove dynamic frame alignment optimization.

src/frames.cc

Index: src/frames.cc
diff --git a/src/frames.cc b/src/frames.cc
index b88b73da8db84d033ea628ed312e0a25d72f8123..6df5d3544601e3eb135ea9b3e17e791b421da742 100644
--- a/src/frames.cc
+++ b/src/frames.cc
@@ -491,16 +491,7 @@ StackFrame::Type StackFrame::GetCallerState(State* state) const {
 
 
 Address StackFrame::UnpaddedFP() const {
-#if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87
-  if (!is_optimized()) return fp();
-  int32_t alignment_state = Memory::int32_at(
-    fp() + JavaScriptFrameConstants::kDynamicAlignmentStateOffset);
-
-  return (alignment_state == kAlignmentPaddingPushed) ?
-    (fp() + kPointerSize) : fp();
-#else
   return fp();
-#endif
 }