Revert of Make SkBlurImageFilter capable of cropping during blur (GPU path).

src/effects/SkBlurMaskFilter.cpp

Index: src/effects/SkBlurMaskFilter.cpp
diff --git a/src/effects/SkBlurMaskFilter.cpp b/src/effects/SkBlurMaskFilter.cpp
index c5c8acc48cae5bfac5de5f5c1103216a7598342f..5a25e54b41837467c91916a7d6100f4ef7ba97df 100644
--- a/src/effects/SkBlurMaskFilter.cpp
+++ b/src/effects/SkBlurMaskFilter.cpp
@@ -1236,7 +1236,7 @@
     // gaussianBlur.  Otherwise, we need to save it for later compositing.
     bool isNormalBlur = (kNormal_SkBlurStyle == fBlurStyle);
     *result = SkGpuBlurUtils::GaussianBlur(context, src, isNormalBlur && canOverwriteSrc,
-                                           clipRect, nullptr, xformedSigma, xformedSigma,
+                                           clipRect, false, xformedSigma, xformedSigma,
                                            GrTextureProvider::kApprox_SizeConstraint);
     if (nullptr == *result) {
         return false;