Removing some old code which looked like it had to do with NACK handling but in reality did nothing.

webrtc/modules/video_coding/test/rtp_player.cc

Index: webrtc/modules/video_coding/test/rtp_player.cc
diff --git a/webrtc/modules/video_coding/test/rtp_player.cc b/webrtc/modules/video_coding/test/rtp_player.cc
index 816960cbe008ceaebf88e4373c403be4eb6230e4..41cd360d133d0b137f09a28e9fc48e407051fa39 100644
--- a/webrtc/modules/video_coding/test/rtp_player.cc
+++ b/webrtc/modules/video_coding/test/rtp_player.cc
@@ -228,7 +228,6 @@ class SsrcHandlers {
       return -1;
     }
 
-    handler->rtp_module_->SetNACKStatus(kNackOff);
     handler->rtp_header_parser_->RegisterRtpHeaderExtension(
         kRtpExtensionTransmissionTimeOffset,
         kDefaultTransmissionTimeOffsetExtensionId);