remove uncalled local functions

src/ports/SkFontHost_win_dw.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTypes.h"
 #undef GetGlyphIndices
 
@@ skipping 707 matching lines @@
     return face;
 }
 
 void SkDWriteFontFromTypeface(const SkTypeface* face, IDWriteFont** font) {
     if (NULL == face) {
         HRVM(get_default_font(font), "Could not get default font.");
     } else {
         *font = SkRefComPtr(static_cast<const DWriteFontTypeface*>(face)->fDWriteFont.get());
     }
 }
-static DWriteFontTypeface* GetDWriteFontByID(SkFontID fontID) {
-    return static_cast<DWriteFontTypeface*>(SkTypefaceCache::FindByID(fontID));
-}
 
 SkScalerContext_DW::SkScalerContext_DW(DWriteFontTypeface* typeface,
                                                  const SkDescriptor* desc)
         : SkScalerContext(typeface, desc)
         , fTypeface(SkRef(typeface))
         , fGlyphCount(-1) {
     SkAutoMutexAcquire ac(gFTMutex);
 
     fXform.m11 = SkScalarToFloat(fRec.fPost2x2[0][0]);
     fXform.m12 = SkScalarToFloat(fRec.fPost2x2[1][0]);
@@ skipping 1119 matching lines @@
 
     WCHAR localeNameStorage[LOCALE_NAME_MAX_LENGTH];
     WCHAR* localeName = NULL;
     int localeNameLen = GetUserDefaultLocaleName(localeNameStorage, LOCALE_NAME_MAX_LENGTH);
     if (localeNameLen) {
         localeName = localeNameStorage;
     };
 
     return SkNEW_ARGS(SkFontMgr_DirectWrite, (sysFontCollection.get(), localeName, localeNameLen));
 }