Remove tons of OILPAN.

sky/engine/core/editing/CompositeEditCommand.h

Index: sky/engine/core/editing/CompositeEditCommand.h
diff --git a/sky/engine/core/editing/CompositeEditCommand.h b/sky/engine/core/editing/CompositeEditCommand.h
index a37647012720eb645249a954ee7a5accc3bba3a7..fba6dbd606e07e0bfbdef9c387e51da603f56514 100644
--- a/sky/engine/core/editing/CompositeEditCommand.h
+++ b/sky/engine/core/editing/CompositeEditCommand.h
@@ -55,8 +55,6 @@ public:
     Element* startingRootEditableElement() const { return m_startingRootEditableElement.get(); }
     Element* endingRootEditableElement() const { return m_endingRootEditableElement.get(); }
 
-    virtual void trace(Visitor*) override;
-
 private:
     EditCommandComposition(Document*, const VisibleSelection& startingSelection, const VisibleSelection& endingSelection, EditAction);
 
@@ -83,8 +81,6 @@ public:
     virtual void setShouldRetainAutocorrectionIndicator(bool);
     virtual bool shouldStopCaretBlinking() const { return false; }
 
-    virtual void trace(Visitor*) override;
-
 protected:
     explicit CompositeEditCommand(Document&);