It was replaced be webrtc::DegradationPreference in this CL:
https://webrtc-review.googlesource.com/c/src/+/77024
But some downstream code was still referencing it.
Bug: webrtc:8830
Change-Id: Ibd0a3d15df7f13473c0f37a2493dd70cec6c0482
Reviewed-on: https://webrtc-review.googlesource.com/78082
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Taylor Brandstetter <deadbeef@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23335}