Remove SK_SUPPORT_LEGACY_DEEPFLATTENING.

src/effects/SkRectShaderImageFilter.cpp

Index: src/effects/SkRectShaderImageFilter.cpp
diff --git a/src/effects/SkRectShaderImageFilter.cpp b/src/effects/SkRectShaderImageFilter.cpp
index 09417c8840f9fe8c0ef3ae6cfe1a789ed4064e56..91a127e0e3f2479a866a4211b7333bd221b6570d 100644
--- a/src/effects/SkRectShaderImageFilter.cpp
+++ b/src/effects/SkRectShaderImageFilter.cpp
@@ -34,13 +34,6 @@ SkRectShaderImageFilter::SkRectShaderImageFilter(SkShader* s, const CropRect* cr
   , fShader(SkRef(s)) {
 }
 
-#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
-SkRectShaderImageFilter::SkRectShaderImageFilter(SkReadBuffer& buffer)
-  : INHERITED(0, buffer) {
-    fShader = buffer.readShader();
-}
-#endif
-
 SkFlattenable* SkRectShaderImageFilter::CreateProc(SkReadBuffer& buffer) {
     SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 0);
     SkAutoTUnref<SkShader> shader(buffer.readShader());