Delete unused methods from VCMReceiveStatisticsCallback

Bug: webrtc:7408
Change-Id: I942b8ce6d91578a6cc3ea8fe3ddd53068af96185
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/129931
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27333}
diff --git a/modules/video_coding/include/video_coding_defines.h b/modules/video_coding/include/video_coding_defines.h
index 0998610..84d5de9 100644
--- a/modules/video_coding/include/video_coding_defines.h
+++ b/modules/video_coding/include/video_coding_defines.h
@@ -84,10 +84,7 @@
   virtual void OnCompleteFrame(bool is_keyframe,
                                size_t size_bytes,
                                VideoContentType content_type) = 0;
-  // TODO(nisse): Delete.
-  virtual void OnDiscardedPacketsUpdated(int discarded_packets) = 0;
-  // TODO(nisse): Delete.
-  virtual void OnFrameCountsUpdated(const FrameCounts& frame_counts) = 0;
+
   virtual void OnFrameBufferTimingsUpdated(int decode_ms,
                                            int max_decode_ms,
                                            int current_delay_ms,