Remove more boilerplate (missed after rebase)

BUG=

Review URL: https://codereview.chromium.org/12951007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14012 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/code-stubs-hydrogen.cc

@@ -258,9 +258,7 @@ HValue* CodeStubGraphBuilder<KeyedStoreFastElementStub>::BuildCodeStub() {
 
 
 Handle<Code> KeyedStoreFastElementStub::GenerateCode() {
-  CodeStubGraphBuilder<KeyedStoreFastElementStub> builder(this);
-  LChunk* chunk = OptimizeGraph(builder.CreateGraph());
-  return chunk->Codegen(Code::COMPILED_STUB);
+  return DoGenerateCode(this);
 }
 
 
@@ -323,6 +321,11 @@ HValue* CodeStubGraphBuilder<TransitionElementsKindStub>::BuildCodeStub() {
 }
 
 
+Handle<Code> TransitionElementsKindStub::GenerateCode() {
+  return DoGenerateCode(this);
+}
+
+
 template <>
 HValue* CodeStubGraphBuilder<ArrayNoArgumentConstructorStub>::BuildCodeStub() {
   HInstruction* deopt = new(zone()) HSoftDeoptimize();
@@ -347,11 +350,6 @@ HValue* CodeStubGraphBuilder<ArraySingleArgumentConstructorStub>::
 }
 
 
-Handle<Code> TransitionElementsKindStub::GenerateCode() {
-  return DoGenerateCode(this);
-}
-
-
 Handle<Code> ArraySingleArgumentConstructorStub::GenerateCode() {
   return DoGenerateCode(this);
 }