Remove redundant member variable in RtpRtcp

Bug: None
Change-Id: Ia999bb4020c8f270c916074e5c58bab15f6c77d0
Reviewed-on: https://webrtc-review.googlesource.com/33300
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24848}
diff --git a/modules/rtp_rtcp/source/rtp_rtcp_impl.h b/modules/rtp_rtcp/source/rtp_rtcp_impl.h
index 5706967..afb4ee6 100644
--- a/modules/rtp_rtcp/source/rtp_rtcp_impl.h
+++ b/modules/rtp_rtcp/source/rtp_rtcp_impl.h
@@ -338,8 +338,7 @@
   uint16_t packet_overhead_;
 
   // Send side
-  int64_t nack_last_time_sent_full_;
-  uint32_t nack_last_time_sent_full_prev_;
+  int64_t nack_last_time_sent_full_ms_;
   uint16_t nack_last_seq_number_sent_;
 
   KeyFrameRequestMethod key_frame_req_method_;