remove internal repeat count from gradient benches

bench/GradientBench.cpp

Index: bench/GradientBench.cpp
diff --git a/bench/GradientBench.cpp b/bench/GradientBench.cpp
index f3e783e78fd3478e96d263f7c9ef7a6f25ec29f1..e5e5fc385f5bfd8f0351d5c52a33476bd5b96db8 100644
--- a/bench/GradientBench.cpp
+++ b/bench/GradientBench.cpp
@@ -207,7 +207,6 @@ class GradientBench : public Benchmark {
     enum {
         W   = 400,
         H   = 400,
-        kRepeat = 15,
     };
 public:
     SkShader* makeShader(GradType gradType, GradData data, SkShader::TileMode tm, float scale) {
@@ -275,7 +274,7 @@ protected:
         }
 
         SkRect r = { 0, 0, SkIntToScalar(W), SkIntToScalar(H) };
-        for (int i = 0; i < loops * kRepeat; i++) {
+        for (int i = 0; i < loops; i++) {
             switch (fGeomType) {
                case kRect_GeomType:
                    canvas->drawRect(r, paint);