AudioFlinger: revert adjust standby delay on VOIP RX output am: 0ca47c2bf2 am: 66c2205bb0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/23531926

Change-Id: I67872e77d7b3627b2dd7bca3b005e3ee985ce559
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>