remove SkFloatToScalar macro

src/effects/SkGpuBlurUtils.cpp

Index: src/effects/SkGpuBlurUtils.cpp
diff --git a/src/effects/SkGpuBlurUtils.cpp b/src/effects/SkGpuBlurUtils.cpp
index 6188c495404f3260f09a813f6fab7f0ddab59db3..02fdf485d2c2399fa1d0d1e080384050bd03adca 100644
--- a/src/effects/SkGpuBlurUtils.cpp
+++ b/src/effects/SkGpuBlurUtils.cpp
@@ -22,10 +22,10 @@ namespace SkGpuBlurUtils {
 #define MAX_BLUR_SIGMA 4.0f
 
 static void scale_rect(SkRect* rect, float xScale, float yScale) {
-    rect->fLeft   = SkScalarMul(rect->fLeft,   SkFloatToScalar(xScale));
-    rect->fTop    = SkScalarMul(rect->fTop,    SkFloatToScalar(yScale));
-    rect->fRight  = SkScalarMul(rect->fRight,  SkFloatToScalar(xScale));
-    rect->fBottom = SkScalarMul(rect->fBottom, SkFloatToScalar(yScale));
+    rect->fLeft   = SkScalarMul(rect->fLeft,   xScale);
+    rect->fTop    = SkScalarMul(rect->fTop,    yScale);
+    rect->fRight  = SkScalarMul(rect->fRight,  xScale);
+    rect->fBottom = SkScalarMul(rect->fBottom, yScale);
 }
 
 static float adjust_sigma(float sigma, int *scaleFactor, int *radius) {