While working on bugs.webrtc.org/11680 I discovered this which is
unused.
Bug: webrtc:11680
Change-Id: I43d984ee9b8a66ccc360bc24e5e1e105bc8cc049
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/177420
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31539}