When running the read_replica_recordIds.js test in burn-in, we encounter intermittent failures where node0 does not have the admin.system.keys collection while node1 does, failing the assertMatchingCatalogIdents. To remove flakiness on this test, the admin.system.keys collection should be temporarily excluded from the test. A separate ticket SERVER-122871 has been filed to investigate the issue and re-enable it.