remove unused GM flags

gm/blurrect.cpp

Index: gm/blurrect.cpp
diff --git a/gm/blurrect.cpp b/gm/blurrect.cpp
index a47b9cdc14cf3a5f60fce64c428f0f6d472701e2..fb3ee379031e01801e687d22502b81b38bce3ba2 100644
--- a/gm/blurrect.cpp
+++ b/gm/blurrect.cpp
@@ -147,8 +147,6 @@ protected:
         }
     }
 
-    uint32_t onGetFlags() const SK_OVERRIDE { return kSkipPipe_Flag | kSkipTiled_Flag; }
-
 private:
     void drawProcs(SkCanvas* canvas, const SkRect& r, const SkPaint& paint,
                    bool doClip, const Proc procs[], size_t procsCount) {
@@ -248,8 +246,6 @@ protected:
         }
     }
 
-    virtual uint32_t onGetFlags() const { return kSkipPipe_Flag; }
-
 private:
     typedef GM INHERITED;
 };
@@ -320,8 +316,6 @@ protected:
         canvas->drawBitmap(bm, SkIntToScalar(center_x), SkIntToScalar(center_y), NULL);
     }
 
-    virtual uint32_t onGetFlags() const { return kSkipPipe_Flag; }
-
 private:
     typedef GM INHERITED;
 };