Remove @media rules.

sky/engine/core/dom/TreeScopeStyleSheetCollection.cpp

Index: sky/engine/core/dom/TreeScopeStyleSheetCollection.cpp
diff --git a/sky/engine/core/dom/TreeScopeStyleSheetCollection.cpp b/sky/engine/core/dom/TreeScopeStyleSheetCollection.cpp
index d11a655a55f0b3930a892b6c497e260967265b3c..dd5038acc0743601d89f450542eaf8d0cc9a5dda 100644
--- a/sky/engine/core/dom/TreeScopeStyleSheetCollection.cpp
+++ b/sky/engine/core/dom/TreeScopeStyleSheetCollection.cpp
@@ -58,13 +58,4 @@ void TreeScopeStyleSheetCollection::removeStyleSheetCandidateNode(Node* node, Co
     m_styleSheetCandidateNodes.remove(node);
 }
 
-void TreeScopeStyleSheetCollection::clearMediaQueryRuleSetStyleSheets()
-{
-    for (size_t i = 0; i < m_activeAuthorStyleSheets.size(); ++i) {
-        StyleSheetContents* contents = m_activeAuthorStyleSheets[i]->contents();
-        if (contents->hasMediaQueries())
-            contents->clearRuleSet();
-    }
-}
-
 }