Revert of Move delay_based_bwe_ into CongestionController

webrtc/modules/congestion_controller/congestion_controller_unittests_helper.h

Index: webrtc/modules/congestion_controller/congestion_controller_unittests_helper.h
diff --git a/webrtc/modules/congestion_controller/congestion_controller_unittests_helper.h b/webrtc/modules/congestion_controller/congestion_controller_unittests_helper.h
deleted file mode 100644
index 474e9a7da637d41429eed515dd136881a173c999..0000000000000000000000000000000000000000
--- a/webrtc/modules/congestion_controller/congestion_controller_unittests_helper.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- *  Copyright (c) 2017 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_MODULES_CONGESTION_CONTROLLER_CONGESTION_CONTROLLER_UNITTESTS_HELPER_H_
-#define WEBRTC_MODULES_CONGESTION_CONTROLLER_CONGESTION_CONTROLLER_UNITTESTS_HELPER_H_
-
-#include <vector>
-
-#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
-
-namespace webrtc {
-void ComparePacketFeedbackVectors(const std::vector<PacketFeedback>& truth,
-                                  const std::vector<PacketFeedback>& input);
-}  // namespace webrtc
-
-#endif  // WEBRTC_MODULES_CONGESTION_CONTROLLER_CONGESTION_CONTROLLER_UNITTESTS_HELPER_H_