This CL is part of the Call-Level Adaptation Processing design doc: https://docs.google.com/document/d/1ZyC26yOCknrrcYa839ZWLxD6o6Gig5A3lVTh4E41074/edit?usp=sharing The POC was used to demo the new design but was never used outside of unit tests. The plan being to iteratively improve the ResourceAdaptationProcessor rather than to replace it, we delete the POC classes to avoid bloat and conflicts. Bug: webrtc:11172 Change-Id: Ic49afdc471d2d774541f8ef3316b4c6d0a9b8a14 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/172923 Commit-Queue: Henrik Boström <hbos@webrtc.org> Reviewed-by: Evan Shrubsole <eshr@google.com> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Cr-Commit-Position: refs/heads/master@{#31094}