SkTypeface_win_dw.cpp remove unused fn

src/ports/SkTypeface_win_dw.cpp

 /*
  * Copyright 2014 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"
 #if defined(SK_BUILD_FOR_WIN32)
 
@@ skipping 295 matching lines @@
         }
         if (0 < glyph) {
             maxGlyph = SkTMax(static_cast<int>(glyph), maxGlyph);
             glyphToUni[glyph] = c;
         }
     }
 
     SkTDArray<SkUnichar>(glyphToUni, maxGlyph + 1).swap(*glyphToUnicode);
 }
 
-static bool getWidthAdvance(IDWriteFontFace* fontFace, int gId, int16_t* advance) {
-    SkASSERT(advance);
-
-    UINT16 glyphId = gId;
-    DWRITE_GLYPH_METRICS gm;
-    HRESULT hr = fontFace->GetDesignGlyphMetrics(&glyphId, 1, &gm);
-
-    if (FAILED(hr)) {
-        *advance = 0;
-        return false;
-    }
-
-    *advance = gm.advanceWidth;
-    return true;
-}
-
 SkAdvancedTypefaceMetrics* DWriteFontTypeface::onGetAdvancedTypefaceMetrics(
         PerGlyphInfo perGlyphInfo,
         const uint32_t* glyphIDs,
         uint32_t glyphIDsCount) const {
 
     SkAdvancedTypefaceMetrics* info = nullptr;
 
     HRESULT hr = S_OK;
 
     const unsigned glyphCount = fDWriteFontFace->GetGlyphCount();
@@ skipping 73 matching lines @@
     info->fDescent = SkToS16(dwfm.descent);
     info->fCapHeight = SkToS16(dwfm.capHeight);
 
     info->fBBox = SkIRect::MakeLTRB((int32_t)SkEndian_SwapBE16((uint16_t)headTable->xMin),
                                     (int32_t)SkEndian_SwapBE16((uint16_t)headTable->yMax),
                                     (int32_t)SkEndian_SwapBE16((uint16_t)headTable->xMax),
                                     (int32_t)SkEndian_SwapBE16((uint16_t)headTable->yMin));
     return info;
 }
 #endif//defined(SK_BUILD_FOR_WIN32)