Revert of Added webrtc/base/safe_conversions.h as a pseudonym

webrtc/base/safe_conversions.h

Index: webrtc/base/safe_conversions.h
diff --git a/webrtc/base/safe_conversions.h b/webrtc/base/safe_conversions.h
deleted file mode 100644
index accc8a9a673ab8e69cfc1eb9146c79e6cae1dec8..0000000000000000000000000000000000000000
--- a/webrtc/base/safe_conversions.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- *
- */
-
-#ifndef WEBRTC_BASE_SAFE_CONVERSIONS_H_
-#define WEBRTC_BASE_SAFE_CONVERSIONS_H_
-
-// TODO(hbos): This file has been replaced by the file being included below.
-// It exists as to not break downstream projects before they have been updated
-// to use the new file path. As soon as the new file path is used, this file
-// should be removed. webrtc:5548
-#include "webrtc/base/numerics/safe_conversions.h"
-
-#endif  // WEBRTC_BASE_SAFE_CONVERSIONS_H_