This helper class is no longer used. Bug: webrtc:14502 Change-Id: I7940de762ebb9a7c6d04927603f249f5b0061051 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/301161 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#39880}