libhwbinder_benchmark -= 1 race am: 2fcf57e9fd am: a7d0f03525 am: f780c1cda1 am: 1d72ead46c

Original change: https://android-review.googlesource.com/c/platform/system/libhwbinder/+/1950636

Change-Id: I37477c2b123c314b6c5e34919a8019cfdd9a61dd