Revert of Add test for previously unflattenables

tests/FlattenableFactoryToName.cpp

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkAlphaThresholdFilter.h"
-#include "SkImage.h"
-#include "Test.h"
-
-static void test_flattenable(skiatest::Reporter* r,
-                             const SkFlattenable* f,
-                             const char* desc) {
-    if (f) {
-        SkFlattenable::Factory factory = f->getFactory();
-        REPORTER_ASSERT(r, factory);
-        if (factory) {
-            if (!SkFlattenable::FactoryToName(factory)) {
-                ERRORF(r, "SkFlattenable::FactoryToName() fails with %s.", desc);
-            }
-        }
-    }
-}
-
-DEF_TEST(FlattenableFactoryToName, r) {
-    SkIRect rects[2];
-    rects[0] = SkIRect::MakeXYWH(0, 150, 500, 200);
-    rects[1] = SkIRect::MakeXYWH(150, 0, 200, 500);
-    SkRegion region;
-    region.setRects(rects, 2);
-    SkAutoTUnref<SkImageFilter> filter( SkAlphaThresholdFilter::Create(region, 0.2f, 0.7f));
-    test_flattenable(r, filter, "SkAlphaThresholdFilter()");
-
-    SkBitmap bm;
-    bm.allocN32Pixels(8, 8);
-    bm.eraseColor(SK_ColorCYAN);
-    SkAutoTUnref<SkImage> image(SkImage::NewFromBitmap(bm));
-    SkAutoTUnref<SkShader> shader(image->newShader(SkShader::kClamp_TileMode,
-                                                   SkShader::kClamp_TileMode));
-    test_flattenable(r, shader, "SkImage::newShader()");
-}