Remove SK_SUPPORT_LEGACY_DEEPFLATTENING.

src/core/SkBitmapProcShader.cpp

Index: src/core/SkBitmapProcShader.cpp
diff --git a/src/core/SkBitmapProcShader.cpp b/src/core/SkBitmapProcShader.cpp
index 1a451fd5918de64c558edfe2cdb7a5c73b66eec1..f01d55905824a34b3bfaa154fcaf0fb68c623abd 100644
--- a/src/core/SkBitmapProcShader.cpp
+++ b/src/core/SkBitmapProcShader.cpp
@@ -39,15 +39,6 @@ SkBitmapProcShader::SkBitmapProcShader(const SkBitmap& src, TileMode tmx, TileMo
     fTileModeY = (uint8_t)tmy;
 }
 
-#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
-SkBitmapProcShader::SkBitmapProcShader(SkReadBuffer& buffer) : INHERITED(buffer) {
-    buffer.readBitmap(&fRawBitmap);
-    fRawBitmap.setImmutable();
-    fTileModeX = buffer.readUInt();
-    fTileModeY = buffer.readUInt();
-}
-#endif
-
 SkShader::BitmapType SkBitmapProcShader::asABitmap(SkBitmap* texture,
                                                    SkMatrix* texM,
                                                    TileMode xy[]) const {