Delete CodecSpecificInfo argument from VideoDecoder::Decode

Bug: webrtc:10379
Change-Id: I079b419604bf4e9c1994fe203d7db131a0ccddb6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/125920
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27022}

modules/video_coding/codecs/h264/h264_decoder_impl.h

@@ -49,7 +49,6 @@ class H264DecoderImpl : public H264Decoder {
   // |missing_frames|, |fragmentation| and |render_time_ms| are ignored.
   int32_t Decode(const EncodedImage& input_image,
                  bool /*missing_frames*/,
-                 const CodecSpecificInfo* codec_specific_info = nullptr,
                  int64_t render_time_ms = -1) override;
 
   const char* ImplementationName() const override;