Remove tons of OILPAN.

sky/engine/core/css/CSSFontFaceSource.cpp

Index: sky/engine/core/css/CSSFontFaceSource.cpp
diff --git a/sky/engine/core/css/CSSFontFaceSource.cpp b/sky/engine/core/css/CSSFontFaceSource.cpp
index 5e599ffc70784d23a85d0323bae15eee97171d65..bd943b42adb82baca69f2172fbe84ff3a408bba9 100644
--- a/sky/engine/core/css/CSSFontFaceSource.cpp
+++ b/sky/engine/core/css/CSSFontFaceSource.cpp
@@ -63,9 +63,4 @@ PassRefPtr<SimpleFontData> CSSFontFaceSource::getFontData(const FontDescription&
     return fontData; // No release, because fontData is a reference to a RefPtr that is held in the m_fontDataTable.
 }
 
-void CSSFontFaceSource::trace(Visitor* visitor)
-{
-    visitor->trace(m_face);
-}
-
 }