Merge "aconfig: call Vec::retain instead of Vec::retain_mut" into main am:...

Merge "aconfig: call Vec::retain instead of Vec::retain_mut" into main am: eb1e02a0 am: 1ecbd3bb

Original change: https://android-review.googlesource.com/c/platform/build/+/2887706



Change-Id: I747d63f7798c2e701a01958b73d72c272ca158f2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>