Remove now-incorrect DataView accessor optimization

src/accessors.cc

Index: src/accessors.cc
diff --git a/src/accessors.cc b/src/accessors.cc
index 8b8753b113ee6233e442f6495451e75b07d5f0d1..7649896a40246e3b625424f19a7541699040618a 100644
--- a/src/accessors.cc
+++ b/src/accessors.cc
@@ -86,23 +86,6 @@ bool Accessors::IsJSObjectFieldAccessor(Handle<Map> map, Handle<Name> name,
 }
 
 
-bool Accessors::IsJSArrayBufferViewFieldAccessor(Handle<Map> map,
-                                                 Handle<Name> name,
-                                                 int* object_offset) {
-  DCHECK(name->IsUniqueName());
-  Isolate* isolate = name->GetIsolate();
-
-  switch (map->instance_type()) {
-    case JS_DATA_VIEW_TYPE:
-      return CheckForName(name, isolate->factory()->byte_length_string(),
-                          JSDataView::kByteLengthOffset, object_offset) ||
-             CheckForName(name, isolate->factory()->byte_offset_string(),
-                          JSDataView::kByteOffsetOffset, object_offset);
-    default:
-      return false;
-  }
-}
-
 namespace {
 
 MUST_USE_RESULT MaybeHandle<Object> ReplaceAccessorWithDataProperty(