Remove dead StyleEngine::removeFontFaceRules.

This existed to support the incremental stylesheet updates
(AnalyzedStyleUpdate) that sky doesn't support.

R=eseidel@google.com

Review URL: https://codereview.chromium.org/793933004

sky/engine/core/dom/StyleEngine.cpp

diff --git a/sky/engine/core/dom/StyleEngine.cpp b/sky/engine/core/dom/StyleEngine.cpp
index ef36e93..0d0719a 100644
--- a/sky/engine/core/dom/StyleEngine.cpp
+++ b/sky/engine/core/dom/StyleEngine.cpp
@@ -171,15 +171,6 @@
         m_resolver->invalidateMatchedPropertiesCache();
 }
 
-void StyleEngine::removeFontFaceRules(const Vector<RawPtr<const StyleRuleFontFace> >& fontFaceRules)
-{
-    FontFaceCache* cache = m_fontSelector->fontFaceCache();
-    for (unsigned i = 0; i < fontFaceRules.size(); ++i)
-        cache->remove(fontFaceRules[i]);
-    if (m_resolver)
-        m_resolver->invalidateMatchedPropertiesCache();
-}
-
 PassRefPtr<CSSStyleSheet> StyleEngine::createSheet(Element* e, const String& text)
 {
     RefPtr<CSSStyleSheet> styleSheet;

sky/engine/core/dom/StyleEngine.h

diff --git a/sky/engine/core/dom/StyleEngine.h b/sky/engine/core/dom/StyleEngine.h
index cd8ddfe..37ad7f6 100644
--- a/sky/engine/core/dom/StyleEngine.h
+++ b/sky/engine/core/dom/StyleEngine.h
@@ -98,7 +98,6 @@
     void clearResolver();
 
     CSSFontSelector* fontSelector() { return m_fontSelector.get(); }
-    void removeFontFaceRules(const Vector<RawPtr<const StyleRuleFontFace> >&);
     void clearFontCache();
     // updateGenericFontFamilySettings is used from WebSettingsImpl.
     void updateGenericFontFamilySettings();