Remove tons of OILPAN.

sky/engine/core/css/resolver/ScopedStyleResolver.cpp

Index: sky/engine/core/css/resolver/ScopedStyleResolver.cpp
diff --git a/sky/engine/core/css/resolver/ScopedStyleResolver.cpp b/sky/engine/core/css/resolver/ScopedStyleResolver.cpp
index 915e1550b4184f020f2f308e09d78541ebbf65da..b95dedd37af2b5ca6f5280e24a8d33d4f7e03368 100644
--- a/sky/engine/core/css/resolver/ScopedStyleResolver.cpp
+++ b/sky/engine/core/css/resolver/ScopedStyleResolver.cpp
@@ -132,13 +132,4 @@ void ScopedStyleResolver::collectMatchingAuthorRules(ElementRuleCollector& colle
     }
 }
 
-void ScopedStyleResolver::trace(Visitor* visitor)
-{
-#if ENABLE(OILPAN)
-    visitor->trace(m_scope);
-    visitor->trace(m_authorStyleSheets);
-    visitor->trace(m_keyframesRuleMap);
-#endif
-}
-
 } // namespace blink