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

src/x64/assembler-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 1197 matching lines @@
   emit_modrm(0, dst);
 }
 
 
 void Assembler::int3() {
   EnsureSpace ensure_space(this);
   emit(0xCC);
 }
 
 
-void Assembler::j(Condition cc, Label* L, Hint hint, Label::Distance distance) {
+void Assembler::j(Condition cc, Label* L, Label::Distance distance) {
   if (cc == always) {
     jmp(L);
     return;
   } else if (cc == never) {
     return;
   }
   EnsureSpace ensure_space(this);
   ASSERT(is_uint4(cc));
-  if (FLAG_emit_branch_hints && hint != no_hint) emit(hint);
   if (L->is_bound()) {
     const int short_size = 2;
     const int long_size  = 6;
     int offs = L->pos() - pc_offset();
     ASSERT(offs <= 0);
     if (is_int8(offs - short_size)) {
       // 0111 tttn #8-bit disp.
       emit(0x70 | cc);
       emit((offs - short_size) & 0xFF);
     } else {
@@ skipping 1781 matching lines @@
   // specially coded on x64 means that it is a relative 32 bit address, as used
   // by branch instructions.
   return (1 << rmode_) & kApplyMask;
 }
 
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64