Revert "Turn the NumberToStringStub into a hydrogen stub."

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index a5c2f88b228e85993ffb5271e54cb83026d4254c..30ec1c76ca9eda6e355032756c75758e0dfcee1d 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -464,25 +464,6 @@ class ToNumberStub: public HydrogenCodeStub {
 };
 
 
-class NumberToStringStub V8_FINAL : public HydrogenCodeStub {
- public:
-  NumberToStringStub() {}
-
-  virtual Handle<Code> GenerateCode(Isolate* isolate) V8_OVERRIDE;
-
-  virtual void InitializeInterfaceDescriptor(
-      Isolate* isolate,
-      CodeStubInterfaceDescriptor* descriptor) V8_OVERRIDE;
-
-  // Parameters accessed via CodeStubGraphBuilder::GetParameter()
-  static const int kNumber = 0;
-
- private:
-  virtual Major MajorKey() V8_OVERRIDE { return NumberToString; }
-  virtual int NotMissMinorKey() V8_OVERRIDE { return 0; }
-};
-
-
 class FastNewClosureStub : public HydrogenCodeStub {
  public:
   explicit FastNewClosureStub(LanguageMode language_mode, bool is_generator)