Remove unused globalRef/globalUnref.

src/core/SkPixelRef.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 "SkPixelRef.h"
 #include "SkThread.h"
 
@@ skipping 254 matching lines @@
 
 bool SkPixelRef::onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3],
                                  SkYUVColorSpace* colorSpace) {
     return false;
 }
 
 size_t SkPixelRef::getAllocatedSizeInBytes() const {
     return 0;
 }
 
-///////////////////////////////////////////////////////////////////////////////
-
-#ifdef SK_BUILD_FOR_ANDROID
-void SkPixelRef::globalRef(void* data) {
-    this->ref();
-}
-
-void SkPixelRef::globalUnref() {
-    this->unref();
-}
-#endif