These interfaces were deprecated 6 years ago and have not been
functional for a long time. It is safe to remove them.
Bug: None
Change-Id: Icbc85758551a96b8da10fbf16a1771c3641d1ac3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/366500
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Auto-Submit: Daniel.L (Byoungchan) Lee <daniel.l@hpcnt.com>
Commit-Queue: Kári Helgason <kthelgason@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43291}