Remove custom style building for -webkit-font-feature-settings.

Source/platform/fonts/FontDescription.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 128 matching lines @@
     bool isSyntheticItalic() const { return m_syntheticItalic; }
     bool useSubpixelPositioning() const { return m_subpixelTextPosition; }
 
     FontTraits traits() const;
     float wordSpacing() const { return m_wordSpacing; }
     float letterSpacing() const { return m_letterSpacing; }
     FontOrientation orientation() const { return static_cast<FontOrientation>(m_orientation); }
     NonCJKGlyphOrientation nonCJKGlyphOrientation() const { return static_cast<NonCJKGlyphOrientation>(m_nonCJKGlyphOrientation); }
     FontWidthVariant widthVariant() const { return static_cast<FontWidthVariant>(m_widthVariant); }
     FontFeatureSettings* featureSettings() const { return m_featureSettings.get(); }
-    FontDescription makeNormalFeatureSettings() const;
 
     float effectiveFontSize() const; // Returns either the computedSize or the computedPixelSize
     FontCacheKey cacheKey(const FontFaceCreationParams&, FontTraits desiredTraits = FontTraits(0)) const;
 
     void setFamily(const FontFamily& family) { m_familyList = family; }
     void setComputedSize(float s) { m_computedSize = clampToFloat(s); }
     void setSpecifiedSize(float s) { m_specifiedSize = clampToFloat(s); }
     void setStyle(FontStyle i) { m_style = i; }
     void setVariant(FontVariant c) { m_variant = c; }
     void setVariantLigatures(const VariantLigatures&);
@@ skipping 104 matching lines @@
         && m_script == other.m_script
         && m_syntheticBold == other.m_syntheticBold
         && m_syntheticItalic == other.m_syntheticItalic
         && m_featureSettings == other.m_featureSettings
         && m_subpixelTextPosition == other.m_subpixelTextPosition;
 }
 
 }
 
 #endif