Revert of Implement software fallback for PPB_VideoDecoder.

ppapi/tests/test_video_decoder.h

-// Copyright (c) 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef PPAPI_TESTS_TEST_VIDEO_DECODER_H_
-#define PPAPI_TESTS_TEST_VIDEO_DECODER_H_
-
-#include <string>
-
-#include "ppapi/c/pp_stdint.h"
-#include "ppapi/c/ppb_video_decoder.h"
-#include "ppapi/cpp/graphics_3d.h"
-#include "ppapi/tests/test_case.h"
-
-class TestVideoDecoder : public TestCase {
- public:
-  explicit TestVideoDecoder(TestingInstance* instance) : TestCase(instance) {}
-
- private:
-  // TestCase implementation.
-  virtual bool Init();
-  virtual void RunTests(const std::string& filter);
-
-  std::string TestCreate();
-
-  // Used by the tests that access the C API directly.
-  const PPB_VideoDecoder_0_1* video_decoder_interface_;
-
-  pp::Graphics3D graphics_3d_;
-};
-
-#endif  // PPAPI_TESTS_TEST_VIDEO_DECODER_H_