Remove custom weak handling of monomorphic IC.

src/ic/ic-compiler.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/ic/handler-compiler.h"
 #include "src/ic/ic-inl.h"
 #include "src/ic/ic-compiler.h"
 
@@ skipping 362 matching lines @@
   return code;
 }
 
 
 Handle<Code> PropertyICCompiler::GetCode(Code::Kind kind, Code::StubType type,
                                          Handle<Name> name,
                                          InlineCacheState state) {
   Code::Flags flags =
       Code::ComputeFlags(kind, state, extra_ic_state_, type, cache_holder());
   Handle<Code> code = GetCodeWithFlags(flags, name);
-  IC::RegisterWeakMapDependency(code);
   PROFILE(isolate(), CodeCreateEvent(log_kind(code), *code, *name));
   return code;
 }
 
 
 Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic(
     MapHandleList* receiver_maps, KeyedAccessStoreMode store_mode) {
   // Collect MONOMORPHIC stubs for all |receiver_maps|.
   CodeHandleList handlers(receiver_maps->length());
   MapHandleList transitioned_maps(receiver_maps->length());
@@ skipping 61 matching lines @@
 
   TailCallBuiltin(masm(), Builtins::kKeyedStoreIC_Miss);
 
   return GetCode(kind(), Code::NORMAL, factory()->empty_string());
 }
 
 
 #undef __
 }
 }  // namespace v8::internal