base::Bind: Remove OldCompletionCallback.

net/base/completion_callback.cc

Index: net/base/completion_callback.cc
diff --git a/net/base/completion_callback.cc b/net/base/completion_callback.cc
deleted file mode 100644
index f697de19d219fa6f1ec6aec3090d1468f8bde20a..0000000000000000000000000000000000000000
--- a/net/base/completion_callback.cc
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011 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.
-
-#include "net/base/completion_callback.h"
-
-namespace net {
-
-void OldCompletionCallbackAdapter(OldCompletionCallback* callback, int result) {
-  callback->Run(result);
-}
-
-}  // namespace net