Remove now-incorrect DataView accessor optimization

src/accessors.h

Index: src/accessors.h
diff --git a/src/accessors.h b/src/accessors.h
index 6a99934105c16e6e53fdf117ae6487c51e06ad42..7863c5a3d7f3988a027b6a9abc4e70cb4259ed96 100644
--- a/src/accessors.h
+++ b/src/accessors.h
@@ -95,14 +95,6 @@ class Accessors : public AllStatic {
   static bool IsJSObjectFieldAccessor(Handle<Map> map, Handle<Name> name,
                                       int* object_offset);
 
-  // Returns true for properties that are accessors to ArrayBufferView and
-  // derived classes fields. If true, *object_offset contains offset of
-  // object field. The caller still has to check whether the underlying
-  // buffer was neutered.
-  static bool IsJSArrayBufferViewFieldAccessor(Handle<Map> map,
-                                               Handle<Name> name,
-                                               int* object_offset);
-
   static Handle<AccessorInfo> MakeAccessor(
       Isolate* isolate,
       Handle<Name> name,