Revert of Extract re-usable InitializeMediaFoundation()

media/base/win/mf_initializer.h

Index: media/base/win/mf_initializer.h
diff --git a/media/base/win/mf_initializer.h b/media/base/win/mf_initializer.h
deleted file mode 100644
index 4c10d6adce86f841dbf37e4cf823559d909cc8b3..0000000000000000000000000000000000000000
--- a/media/base/win/mf_initializer.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2015 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 MEDIA_BASE_WIN_MF_INITIALIZER_H_
-#define MEDIA_BASE_WIN_MF_INITIALIZER_H_
-
-#include "media/base/media_export.h"
-
-namespace media {
-
-// Makes sure MFStartup() is called exactly once, and that this call is paired
-// by a call to MFShutdown().
-MEDIA_EXPORT void InitializeMediaFoundation();
-
-}  // namespace media
-
-#endif  // MEDIA_BASE_WIN_MF_INITIALIZER_H_