Delete unused AnimatableValue code

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

Index: third_party/WebKit/Source/core/animation/animatable/AnimatablePath.h
diff --git a/third_party/WebKit/Source/core/animation/animatable/AnimatablePath.h b/third_party/WebKit/Source/core/animation/animatable/AnimatablePath.h
index 22de9cd96783e7f600aceea6672f4c030c5dde2f..1f3fb5b422194a4a99c67d078c7c918f961c7818 100644
--- a/third_party/WebKit/Source/core/animation/animatable/AnimatablePath.h
+++ b/third_party/WebKit/Source/core/animation/animatable/AnimatablePath.h
@@ -11,20 +11,13 @@
 
 namespace blink {
 
-class CORE_EXPORT AnimatablePath final : public AnimatableValue {
+class AnimatablePath final : public AnimatableValue {
  public:
   ~AnimatablePath() override {}
   static PassRefPtr<AnimatablePath> create(PassRefPtr<StylePath> path) {
     return adoptRef(new AnimatablePath(std::move(path)));
   }
 
-  StylePath* path() const { return m_path.get(); }
-
- protected:
-  PassRefPtr<AnimatableValue> interpolateTo(const AnimatableValue*,
-                                            double fraction) const override;
-  bool usesDefaultInterpolationWith(const AnimatableValue*) const override;
-
  private:
   explicit AnimatablePath(PassRefPtr<StylePath> path) : m_path(path) {}
   AnimatableType type() const override { return TypePath; }