These functions had dummy implementations, but were not virtual. The need for those functions seems to be lost in time. Bug: None Change-Id: I66dcac4a92f9993d82031f943f2f9ae767156b8a Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/330422 Commit-Queue: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41336}