Remove REM units.

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 0d0c39264f70d9cb049b3eff5d333a9f7f0a765e..d11a655a55f0b3930a892b6c497e260967265b3c 100644
--- a/sky/engine/core/dom/TreeScopeStyleSheetCollection.cpp
+++ b/sky/engine/core/dom/TreeScopeStyleSheetCollection.cpp
@@ -38,7 +38,6 @@ namespace blink {
 
 TreeScopeStyleSheetCollection::TreeScopeStyleSheetCollection(TreeScope& treeScope)
     : m_treeScope(treeScope)
-    , m_usesRemUnits(false)
 {
 }
 
@@ -68,18 +67,4 @@ void TreeScopeStyleSheetCollection::clearMediaQueryRuleSetStyleSheets()
     }
 }
 
-static bool styleSheetsUseRemUnits(const Vector<RefPtr<CSSStyleSheet> >& sheets)
-{
-    for (unsigned i = 0; i < sheets.size(); ++i) {
-        if (sheets[i]->contents()->usesRemUnits())
-            return true;
-    }
-    return false;
-}
-
-void TreeScopeStyleSheetCollection::updateUsesRemUnits()
-{
-    m_usesRemUnits = styleSheetsUseRemUnits(m_activeAuthorStyleSheets);
-}
-
 }