Removing AudioProcessingBuilder from few layers would simplify replacing with BuiltinAudioProcessingFactory in the upcoming patches. While doing cleanup also removed extra always empty parameters and run iwyu. Bug: webrtc:369904700 Change-Id: I54d44993701c30ca8f4cf38e822af08531fba310 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/366260 Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Sam Zackrisson <saza@webrtc.org> Reviewed-by: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43306}