Remove tons of OILPAN.

sky/engine/core/css/CSSShadowValue.cpp

Index: sky/engine/core/css/CSSShadowValue.cpp
diff --git a/sky/engine/core/css/CSSShadowValue.cpp b/sky/engine/core/css/CSSShadowValue.cpp
index bf99cc909177fb4be8680847f21100652e66a734..ad4a461f5c100228b690de0175d50344bf176377 100644
--- a/sky/engine/core/css/CSSShadowValue.cpp
+++ b/sky/engine/core/css/CSSShadowValue.cpp
@@ -88,15 +88,4 @@ bool CSSShadowValue::equals(const CSSShadowValue& other) const
         && compareCSSValuePtr(style, other.style);
 }
 
-void CSSShadowValue::traceAfterDispatch(Visitor* visitor)
-{
-    visitor->trace(x);
-    visitor->trace(y);
-    visitor->trace(blur);
-    visitor->trace(spread);
-    visitor->trace(style);
-    visitor->trace(color);
-    CSSValue::traceAfterDispatch(visitor);
-}
-
 }