Remove support for branch hints from the IA32 and X64 assembler.

src/x64/code-stubs-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4841 matching lines @@
 }
 
 
 void ICCompareStub::GenerateObjects(MacroAssembler* masm) {
   ASSERT(state_ == CompareIC::OBJECTS);
   Label miss;
   Condition either_smi = masm->CheckEitherSmi(rdx, rax);
   __ j(either_smi, &miss, Label::kNear);
 
   __ CmpObjectType(rax, JS_OBJECT_TYPE, rcx);
-  __ j(not_equal, &miss, not_taken, Label::kNear);
+  __ j(not_equal, &miss, Label::kNear);
   __ CmpObjectType(rdx, JS_OBJECT_TYPE, rcx);
-  __ j(not_equal, &miss, not_taken, Label::kNear);
+  __ j(not_equal, &miss, Label::kNear);
 
   ASSERT(GetCondition() == equal);
   __ subq(rax, rdx);
   __ ret(0);
 
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
 
@@ skipping 226 matching lines @@
   __ Drop(1);
   __ ret(2 * kPointerSize);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64