Merge "Remove stale TODOs about audio HALs" am: 1d926594bd am: b03f1398d5

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1582549

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I6f8b840ff93b451837e620c9d63727a6077fd357