The deleted members are bytes_sent, bytes_received,
and (receive-side) fraction_lost.
Followup to https://webrtc-review.googlesource.com/c/src/+/143178.
Bug: webrtc:10744, webrtc:10525
Change-Id: Ibd8b15619c78b82a9dc18abddb6e1687fae60c88
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/143902
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29566}