Revert of Propagate probing cluster id to SendTimeHistory.

webrtc/modules/rtp_rtcp/include/rtp_rtcp.h

 /*
  *  Copyright (c) 2012 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.
  */
 
@@ skipping 297 matching lines @@
         uint32_t timeStamp,
         int64_t capture_time_ms,
         const uint8_t* payloadData,
         size_t payloadSize,
         const RTPFragmentationHeader* fragmentation = NULL,
         const RTPVideoHeader* rtpVideoHdr = NULL) = 0;
 
     virtual bool TimeToSendPacket(uint32_t ssrc,
                                   uint16_t sequence_number,
                                   int64_t capture_time_ms,
-                                  bool retransmission,
-                                  int probe_cluster_id) = 0;
+                                  bool retransmission) = 0;
 
-    virtual size_t TimeToSendPadding(size_t bytes, int probe_cluster_id) = 0;
+    virtual size_t TimeToSendPadding(size_t bytes) = 0;
 
     // Called on generation of new statistics after an RTP send.
     virtual void RegisterSendChannelRtpStatisticsCallback(
         StreamDataCountersCallback* callback) = 0;
     virtual StreamDataCountersCallback*
         GetSendChannelRtpStatisticsCallback() const = 0;
 
     /**************************************************************************
     *
     *   RTCP
@@ skipping 316 matching lines @@
 
     /*
     *   send a request for a keyframe
     *
     *   return -1 on failure else 0
     */
     virtual int32_t RequestKeyFrame() = 0;
 };
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_RTP_RTCP_INCLUDE_RTP_RTCP_H_