The lost callback should be skipped if the service has not been
previously notified. Otherwise, the listener could inadvertently
initiate the service removal process for the incorrect service.
Bug: 387910548
Test: atest ConnectivityCoverageTests NsdManagerTest
Flag: EXEMPT legacy flag nsd_optimized_expired_service_removal
Change-Id: I7fdf31f0b15f19becc10fcb35c7b1f47dcc38c27