Nobody defines SK_SUPPORT_HINTING_SCALE_FACTOR any more, so remove it.

src/core/SkScalerContext.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkScalerContext_DEFINED
 #define SkScalerContext_DEFINED
 
@@ skipping 16 matching lines @@
 /*
  *  To allow this to be forward-declared, it must be its own typename, rather
  *  than a nested struct inside SkScalerContext (where it started).
  */
 struct SkScalerContextRec {
     uint32_t    fOrigFontID;
     uint32_t    fFontID;
     SkScalar    fTextSize, fPreScaleX, fPreSkewX;
     SkScalar    fPost2x2[2][2];
     SkScalar    fFrameWidth, fMiterLimit;
-#ifdef SK_SUPPORT_HINTING_SCALE_FACTOR
-    SkScalar    fHintingScaleFactor;
-#endif
 
     //These describe the parameters to create (uniquely identify) the pre-blend.
     uint32_t    fLumBits;
     uint8_t     fDeviceGamma; //2.6, (0.0, 4.0) gamma, 0.0 for sRGB
     uint8_t     fPaintGamma;  //2.6, (0.0, 4.0) gamma, 0.0 for sRGB
     uint8_t     fContrast;    //0.8+1, [0.0, 1.0] artificial contrast
     uint8_t     fReservedAlign;
 
     SkScalar getDeviceGamma() const {
         return SkIntToScalar(fDeviceGamma) / (1 << 6);
@@ skipping 249 matching lines @@
     return static_cast<SkPaint::Hinting>(hint);
 }
 
 void SkScalerContextRec::setHinting(SkPaint::Hinting hinting) {
     fFlags = (fFlags & ~SkScalerContext::kHinting_Mask) |
                                 (hinting << SkScalerContext::kHinting_Shift);
 }
 
 
 #endif