Revert "libaudiohal@aidl: Work around use of unsupported mix por..."

Revert submission 2862771-cuttlefish_aidl_audio-2

Reason for revert: b/316027906

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

Change-Id: I52b3ede7616b54458cacc54c330a8938f542935c
1 file changed