Delete unused constructor arguments from VCMJitterBuffer

The NackSender* and KeyFrameRequestSender* arguments were unused.

Bug: webrtc:7408
Change-Id: Iab3b443373953e88c48867d031cb114b4891ab78
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/130503
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27377}

modules/video_coding/video_receiver.cc

@@ -41,16 +41,10 @@
 namespace webrtc {
 namespace vcm {
 
-VideoReceiver::VideoReceiver(Clock* clock,
-                             VCMTiming* timing,
-                             NackSender* nack_sender,
-                             KeyFrameRequestSender* keyframe_request_sender)
+VideoReceiver::VideoReceiver(Clock* clock, VCMTiming* timing)
     : clock_(clock),
       _timing(timing),
-      _receiver(_timing,
-                clock_,
-                nack_sender,
-                keyframe_request_sender),
+      _receiver(_timing, clock_),
       _decodedFrameCallback(_timing, clock_),
       _frameTypeCallback(nullptr),
       _packetRequestCallback(nullptr),