Removing unneeded TLS fetch from v8::Null and friends

src/apiutils.h

Index: src/apiutils.h
diff --git a/src/apiutils.h b/src/apiutils.h
index 149ede59c32bf1254dd6b36af3480070a350867a..68579af1b3e6fe9cc8af276338c78860e0f4fdde 100644
--- a/src/apiutils.h
+++ b/src/apiutils.h
@@ -31,11 +31,6 @@
 namespace v8 {
 class ImplementationUtilities {
  public:
-  static v8::Handle<v8::Primitive> Undefined();
-  static v8::Handle<v8::Primitive> Null();
-  static v8::Handle<v8::Boolean> True();
-  static v8::Handle<v8::Boolean> False();
-
   static int GetNameCount(ExtensionConfiguration* that) {
     return that->name_count_;
   }