Merge "Remove modules that depended on webrtc_legacy" am: 308f2b28 am: 298eb79c am: 375eb523

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1521067

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I0dae9529e91540c50b329336bfa83a3c4665ae49