Merge "Revert "libbinder: Flush excess refs after single async transaction"" am: 2aef5c6509

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2433579

Change-Id: I99ea823650ad4b366913022e20245b4e077cf1fa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>