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/jitter_buffer.cc

@@ -218,9 +218,7 @@ void Vp9SsMap::UpdateFrames(FrameList* frames) {
 }
 
 VCMJitterBuffer::VCMJitterBuffer(Clock* clock,
-                                 std::unique_ptr<EventWrapper> event,
-                                 NackSender* nack_sender,
-                                 KeyFrameRequestSender* keyframe_request_sender)
+                                 std::unique_ptr<EventWrapper> event)
     : clock_(clock),
       running_(false),
       frame_event_(std::move(event)),