Revert "audio: Fix remote submix behavior with multiple inputs"

Revert submission 2862771-cuttlefish_aidl_audio-2

Reason for revert: b/316027906

Reverted changes: /q/submissionid:2862771-cuttlefish_aidl_audio-2

Change-Id: I68932be8dad4b4fd4214d0ae6fc01202727f1658
4 files changed