Revert of Add GM/slide to simulate Android-style reveal clip

src/effects/SkGaussianEdgeShader.cpp

Index: src/effects/SkGaussianEdgeShader.cpp
diff --git a/src/effects/SkGaussianEdgeShader.cpp b/src/effects/SkGaussianEdgeShader.cpp
index efcfbbf4b5e2e7a7cb7cfd01f8a1cc559ad69d81..d73bfadbd77bead16a7c33f836186fd313a2bde1 100644
--- a/src/effects/SkGaussianEdgeShader.cpp
+++ b/src/effects/SkGaussianEdgeShader.cpp
@@ -133,6 +133,7 @@
 }
 
 void SkGaussianEdgeShaderImpl::flatten(SkWriteBuffer& buf) const {
+    this->INHERITED::flatten(buf);
 }
 
 ///////////////////////////////////////////////////////////////////////////////