We have a tweak preventing multiple deep-examinations of packets; packets with a given SSRC are only inspected deeply (RSID) once (only the first received packet). Once we move to many-to-one stream-to-sink associations, this becomes less useful, and is better removed.
BUG=webrtc:7135
Review-Url: https://codereview.webrtc.org/2955373002
Cr-Commit-Position: refs/heads/master@{#18859}