Do not keep runtime invisible annotations in proguard.flags am: b0f8c82e37

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Messaging/+/3455602

Change-Id: I5c7bcb5fbf8a125fa2993f1da79c6e2ae50ba623
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>