Revert of Use removeFontFace to avoid resetting fontSelector.

Source/core/dom/StyleEngine.cpp

Index: Source/core/dom/StyleEngine.cpp
diff --git a/Source/core/dom/StyleEngine.cpp b/Source/core/dom/StyleEngine.cpp
index 777ca67c0bbcb53f391edd61e4b984bb2ce969d5..38af28c5f6efca83ce79459756a79fe195aa0ad5 100644
--- a/Source/core/dom/StyleEngine.cpp
+++ b/Source/core/dom/StyleEngine.cpp
@@ -570,16 +570,6 @@
     }
 }
 
-void StyleEngine::removeFontFaceRules(const Vector<const StyleRuleFontFace*>& fontFaceRules)
-{
-    if (!m_fontSelector)
-        return;
-    for (unsigned i = 0; i < fontFaceRules.size(); ++i)
-        m_fontSelector->removeFontFaceRule(fontFaceRules[i]);
-    if (m_resolver)
-        m_resolver->invalidateMatchedPropertiesCache();
-}
-
 void StyleEngine::markTreeScopeDirty(TreeScope& scope)
 {
     if (scope == m_document) {