Remove unused AnimatableValue types

third_party/WebKit/Source/core/animation/animatable/AnimatablePath.h

-// Copyright 2015 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 AnimatablePath_h
-#define AnimatablePath_h
-
-#include "core/CoreExport.h"
-#include "core/animation/animatable/AnimatableValue.h"
-#include "core/style/StylePath.h"
-
-namespace blink {
-
-class AnimatablePath final : public AnimatableValue {
- public:
-  ~AnimatablePath() override {}
-  static PassRefPtr<AnimatablePath> Create(PassRefPtr<StylePath> path) {
-    return AdoptRef(new AnimatablePath(std::move(path)));
-  }
-
- private:
-  explicit AnimatablePath(PassRefPtr<StylePath> path)
-      : path_(std::move(path)) {}
-  AnimatableType GetType() const override { return kTypePath; }
-  bool EqualTo(const AnimatableValue*) const override;
-  const RefPtr<StylePath> path_;
-};
-
-DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatablePath, IsPath());
-
-}  // namespace blink
-
-#endif  // AnimatablePath_h