Remove font subpixel positioning flag

third_party/WebKit/Source/platform/fonts/FontCache.cpp

 /*
  * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 60 matching lines @@
 typedef HashMap<FallbackListCompositeKey, OwnPtr<ShapeCache>, FallbackListCompositeKeyHash, FallbackListCompositeKeyTraits> FallbackListShaperCache;
 
 static FontPlatformDataCache* gFontPlatformDataCache = nullptr;
 static FallbackListShaperCache* gFallbackListShaperCache = nullptr;
 
 SkFontMgr* FontCache::s_fontManager = nullptr;
 
 #if OS(WIN)
 bool FontCache::s_antialiasedTextEnabled = false;
 bool FontCache::s_lcdTextEnabled = false;
-bool FontCache::s_useSubpixelPositioning = false;
 float FontCache::s_deviceScaleFactor = 1.0;
 bool FontCache::s_useSkiaFontFallback = false;
 #endif // OS(WIN)
 
 FontCache* FontCache::fontCache()
 {
     DEFINE_STATIC_LOCAL(FontCache, globalFontCache, ());
     return &globalFontCache;
 }
 
@@ skipping 293 matching lines @@
     case USCRIPT_SIMPLIFIED_HAN:
         return "zh-Hans";
     case USCRIPT_TRADITIONAL_HAN:
         return "zh-Hant";
     default:
         return locale.ascii();
     }
 }
 
 } // namespace blink