Remove tons of OILPAN.

sky/engine/core/animation/animatable/AnimatableValueKeyframe.h

Index: sky/engine/core/animation/animatable/AnimatableValueKeyframe.h
diff --git a/sky/engine/core/animation/animatable/AnimatableValueKeyframe.h b/sky/engine/core/animation/animatable/AnimatableValueKeyframe.h
index ced75f6a0c14d10da493b0329074e19f32952799..018916ac82e51c0170b61209fc6cf1dcbfd81a68 100644
--- a/sky/engine/core/animation/animatable/AnimatableValueKeyframe.h
+++ b/sky/engine/core/animation/animatable/AnimatableValueKeyframe.h
@@ -28,8 +28,6 @@ public:
     }
     virtual PropertySet properties() const override;
 
-    virtual void trace(Visitor*) override;
-
     class PropertySpecificKeyframe : public Keyframe::PropertySpecificKeyframe {
     public:
         PropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, const AnimatableValue*, AnimationEffect::CompositeOperation);
@@ -40,8 +38,6 @@ public:
         virtual PassOwnPtr<Keyframe::PropertySpecificKeyframe> neutralKeyframe(double offset, PassRefPtr<TimingFunction> easing) const override final;
         virtual PassRefPtr<Interpolation> createInterpolation(CSSPropertyID, blink::Keyframe::PropertySpecificKeyframe* end, Element*) const override final;
 
-        virtual void trace(Visitor*) override;
-
     private:
         PropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, PassRefPtr<AnimatableValue>);