These methods are implemented everywhere, and no longer need to provide
default implementations.
Bug: webrtc:9719
Change-Id: I2b33ace17696ec832a9936cf02a81c4973158046
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/154003
Commit-Queue: Bjorn Mellem <mellem@webrtc.org>
Commit-Queue: Seth Hampson <shampson@webrtc.org>
Reviewed-by: Seth Hampson <shampson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29263}