[compiler] Unify EnsureFeedbackMetadata call sites.

src/type-feedback-vector.h

Index: src/type-feedback-vector.h
diff --git a/src/type-feedback-vector.h b/src/type-feedback-vector.h
index 3f896226e81ca16fca150502117789dcd729777c..c9eae023a867951103cf4dc76e4a4d8decdb0260 100644
--- a/src/type-feedback-vector.h
+++ b/src/type-feedback-vector.h
@@ -217,11 +217,6 @@ class TypeFeedbackMetadata : public FixedArray {
   template <typename Spec>
   static Handle<TypeFeedbackMetadata> New(Isolate* isolate, const Spec* spec);
 
-  // Ensure that the given shared function info has type feedback metadata with
-  // the given spec.
-  static void EnsureAllocated(Isolate* isolate, Handle<SharedFunctionInfo> sfi,
-                              const FeedbackVectorSpec* spec);
-
 #ifdef OBJECT_PRINT
   // For gdb debugging.
   void Print();