Instead, use an array indexed on the scalability mode. This is a follow-up on https://webrtc-review.googlesource.com/c/src/+/344760. Bug: webrtc:15892 Change-Id: I8e820d758e1838d65ae771b502c7c27a89790026 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/345922 Commit-Queue: Evan Shrubsole <eshr@google.com> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42013}