Sine a starting rate field was added to the constraints struct. Having it in the initial config separately is reduntant. To simplify the code, the extra field is removed. This is a follow up on: https://webrtc-review.googlesource.com/c/src/+/92624 Bug: webrtc:9586 Change-Id: I9b01b16b2fc4b8479e83b7e998308be2295e0325 Reviewed-on: https://webrtc-review.googlesource.com/96801 Commit-Queue: Sebastian Jansson <srte@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24514}