The error codes not complying with the spec are now notified with the GST_WEBRTC_ERROR_INTERNAL_FAILURE code. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1485>
Redundant condition and unreachable codes are also removed. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1544>