Deprecate VideoDecoder::Reset() and remove calls.

webrtc/modules/video_coding/video_coding_impl.cc

Index: webrtc/modules/video_coding/video_coding_impl.cc
diff --git a/webrtc/modules/video_coding/video_coding_impl.cc b/webrtc/modules/video_coding/video_coding_impl.cc
index 1e26a7e243089e89184e5700653b065d16efed38..a9b277fd9ee705bfced3e6d05008487dfcf16e42 100644
--- a/webrtc/modules/video_coding/video_coding_impl.cc
+++ b/webrtc/modules/video_coding/video_coding_impl.cc
@@ -219,8 +219,6 @@ class VideoCodingModuleImpl : public VideoCodingModule {
     return receiver_.Decode(maxWaitTimeMs);
   }
 
-  int32_t ResetDecoder() override { return receiver_.ResetDecoder(); }
-
   int32_t ReceiveCodec(VideoCodec* currentReceiveCodec) const override {
     return receiver_.ReceiveCodec(currentReceiveCodec);
   }