Revert of Refactor NACK bitrate allocation

webrtc/modules/rtp_rtcp/include/rtp_rtcp.h

Index: webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
diff --git a/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h b/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
index bfd8e657432b2dc6197e9aab0d7f130a47d8f232..7c72e5917c8ab2feb8acdac1c119cd3e25b8b5c6 100644
--- a/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
+++ b/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
@@ -23,12 +23,11 @@
 
 namespace webrtc {
 // Forward declarations.
-class RateLimiter;
 class ReceiveStatistics;
 class RemoteBitrateEstimator;
-class RtcEventLog;
 class RtpReceiver;
 class Transport;
+class RtcEventLog;
 
 RTPExtensionType StringToRtpExtensionType(const std::string& extension);
 
@@ -80,7 +79,6 @@
     SendSideDelayObserver* send_side_delay_observer;
     RtcEventLog* event_log;
     SendPacketObserver* send_packet_observer;
-    RateLimiter* retransmission_rate_limiter;
     RTC_DISALLOW_COPY_AND_ASSIGN(Configuration);
   };
 
@@ -618,6 +616,11 @@
     ***************************************************************************/
 
     /*
+    *   Set the target send bitrate
+    */
+    virtual void SetTargetSendBitrate(uint32_t bitrate_bps) = 0;
+
+    /*
     *   Turn on/off generic FEC
     */
     virtual void SetGenericFECStatus(bool enable,