It is not used any more. Bug: webrtc:13931 Change-Id: I266de41abe239907c6d65f4b182a8dc3aacaba3d Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/308022 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#40234}