Now that RtpVp9RefFinder sets an additional reference on the frame instead of marking it as inter_layer_predicted it is no longer used. Bug: webrtc:12206 Change-Id: I10e0930336eafc32dc86feb2f690cb131e55be2c Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/196740 Commit-Queue: Philip Eliasson <philipel@webrtc.org> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32814}