following the removal of ISAC from the code base. BUG=webrtc:14450 Change-Id: I6faab5391bf0ef563c5dcce0bd5d8a653a87d9c8 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/294523 Reviewed-by: Alessio Bazzica <alessiob@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Philipp Hancke <phancke@microsoft.com> Cr-Commit-Position: refs/heads/main@{#39378}