Remove tons of OILPAN.

sky/engine/core/css/CSSKeyframesRule.h

Index: sky/engine/core/css/CSSKeyframesRule.h
diff --git a/sky/engine/core/css/CSSKeyframesRule.h b/sky/engine/core/css/CSSKeyframesRule.h
index 13b407821e089a6cbe44b12bbdce8157e55e4356..158959af114f358bc0e0d327add58dbc43f95225 100644
--- a/sky/engine/core/css/CSSKeyframesRule.h
+++ b/sky/engine/core/css/CSSKeyframesRule.h
@@ -59,8 +59,6 @@ public:
 
     PassRefPtr<StyleRuleKeyframes> copy() const { return adoptRef(new StyleRuleKeyframes(*this)); }
 
-    void traceAfterDispatch(Visitor*);
-
 private:
     StyleRuleKeyframes();
     explicit StyleRuleKeyframes(const StyleRuleKeyframes&);
@@ -101,8 +99,6 @@ public:
     bool isVendorPrefixed() const { return m_isPrefixed; }
     void setVendorPrefixed(bool isPrefixed) { m_isPrefixed = isPrefixed; }
 
-    virtual void trace(Visitor*) override;
-
 private:
     CSSKeyframesRule(StyleRuleKeyframes*, CSSStyleSheet* parent);