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.h

@@ -106,10 +106,7 @@ class Vp9SsMap {
 
 class VCMJitterBuffer {
  public:
-  VCMJitterBuffer(Clock* clock,
-                  std::unique_ptr<EventWrapper> event,
-                  NackSender* nack_sender = nullptr,
-                  KeyFrameRequestSender* keyframe_request_sender = nullptr);
+  VCMJitterBuffer(Clock* clock, std::unique_ptr<EventWrapper> event);
 
   ~VCMJitterBuffer();