Clean up old resources when receiving new data from ConfigUpdater am: b585a45a32

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/26601886

Change-Id: Id970d1835e769cacd0cc7b5c4b8b9fa3683d2796
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>