Revert of [Bindings] Create and use V8 context snapshots

third_party/WebKit/Source/bindings/modules/v8/V8ContextSnapshotExternalReferences.h

-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef V8ContextSnapshotExternalReferences_h
-#define V8ContextSnapshotExternalReferences_h
-
-#include <cstdint>
-
-#include "modules/ModulesExport.h"
-#include "platform/wtf/Allocator.h"
-
-namespace blink {
-
-// V8ContextSnapshotExternalReferences::GetTable() provides a table of pointers
-// of C++ callbacks exposed to V8. The table contains C++ callbacks for DOM
-// attribute getters, setters, DOM methods, wrapper type info etc.
-class MODULES_EXPORT V8ContextSnapshotExternalReferences {
-  STATIC_ONLY(V8ContextSnapshotExternalReferences);
-
- public:
-  // The definition of this method is auto-generated in
-  // V8ContextSnapshotExternalReferences.cpp.
-  static intptr_t* GetTable();
-};
-
-}  // namespace blink
-
-#endif  // V8ContextSnapshotExternalReferences_h