Revert 226264 "Be able to build cast_unittest and related target..."

trunk/src/media/cast/rtcp/mock_rtcp_sender_feedback.cc

Index: trunk/src/media/cast/rtcp/mock_rtcp_sender_feedback.cc
===================================================================
--- trunk/src/media/cast/rtcp/mock_rtcp_sender_feedback.cc	(revision 226266)
+++ trunk/src/media/cast/rtcp/mock_rtcp_sender_feedback.cc	(working copy)
@@ -1,17 +0,0 @@
-// Copyright 2013 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 "media/cast/rtcp/mock_rtcp_sender_feedback.h"
-
-namespace media {
-namespace cast {
-
-MockRtcpSenderFeedback::MockRtcpSenderFeedback() {
-}
-
-MockRtcpSenderFeedback::~MockRtcpSenderFeedback() {
-}
-
-}  // namespace cast
-}  // namespace media