The needed constant kMaxSpatialLayers is now moved to
video_codec_constants.h.
Bug: webrtc:8311
Change-Id: Iefde2e0668ce6a8d262d2747ad497ae8891873f9
Reviewed-on: https://webrtc-review.googlesource.com/c/123181
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26739}