remove unused GM flags

gm/discard.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 "gm.h"
 #include "SkCanvas.h"
 #include "SkColorShader.h"
 #include "SkPaint.h"
 #include "SkSurface.h"
 
 #if SK_SUPPORT_GPU
 
 namespace skiagm {
 
 /*
  * This GM exercises SkCanvas::discard() by creating an offscreen SkSurface and repeatedly
  * discarding it, drawing to it, and then drawing it to the main canvas.
  */
 class DiscardGM : public GM {
 
 public:
     DiscardGM() {
     }
 
-    uint32_t onGetFlags() const SK_OVERRIDE { return kGPUOnly_Flag; }
-
 protected:
     SkString onShortName() SK_OVERRIDE {
         return SkString("discard");
     }
 
     SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(100, 100);
     }
 
     void onDraw(SkCanvas* canvas) SK_OVERRIDE {
@@ skipping 46 matching lines @@
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return SkNEW(DiscardGM); )
 
 } // end namespace
 
 #endif