Properly set up the code flags of the turbofan interceptor stubs.

src/code-factory.h

Index: src/code-factory.h
diff --git a/src/code-factory.h b/src/code-factory.h
index 0aac643655a94e1b824da5e830745ff0d7873eb1..7a667de2ce75b68df60e2d28c0d1f18745df805f 100644
--- a/src/code-factory.h
+++ b/src/code-factory.h
@@ -54,8 +54,6 @@ class CodeFactory final {
       Isolate* isolate, LanguageMode mode,
       InlineCacheState initialization_state);
 
-  static Callable StoreInterceptor(Isolate* isolate);
-
   static Callable ResumeGenerator(Isolate* isolate);
 
   static Callable CompareIC(Isolate* isolate, Token::Value op);