Remove SK_SUPPORT_LEGACY_DEEPFLATTENING.

src/core/SkComposeShader.cpp

Index: src/core/SkComposeShader.cpp
diff --git a/src/core/SkComposeShader.cpp b/src/core/SkComposeShader.cpp
index 3c5b55aae663e948e0c740d4dbcde3b9948d790a..3c6623d29128e2be3b16fb9cfbc1f65df7b9ad32 100644
--- a/src/core/SkComposeShader.cpp
+++ b/src/core/SkComposeShader.cpp
@@ -26,20 +26,6 @@ SkComposeShader::SkComposeShader(SkShader* sA, SkShader* sB, SkXfermode* mode) {
     SkSafeRef(mode);
 }
 
-#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
-SkComposeShader::SkComposeShader(SkReadBuffer& buffer) : INHERITED(buffer) {
-    fShaderA = buffer.readShader();
-    if (NULL == fShaderA) {
-        fShaderA = SkNEW_ARGS(SkColorShader, ((SkColor)0));
-    }
-    fShaderB = buffer.readShader();
-    if (NULL == fShaderB) {
-        fShaderB = SkNEW_ARGS(SkColorShader, ((SkColor)0));
-    }
-    fMode = buffer.readXfermode();
-}
-#endif
-
 SkComposeShader::~SkComposeShader() {
     SkSafeUnref(fMode);
     fShaderB->unref();