Cleanup out of date comments (no real changes).

storage/rocksdb/mysql-test/rocksdb/t/disabled.def

@@ -68,19 +68,12 @@ lock_wait_timeout_stats: MDEV-13404
 compact_deletes: MDEV-12663 : rocksdb.compact_deletes times out and causes other tests to fail
 blind_delete_without_tx_api: MDEV-12286: rocksdb.blind_delete_without_tx_api test fails
 
-# Enabling these didn't seem to cause any trouble:
-# autoinc_vars_thread : MDEV-12474 Regularly fails on buildbot
-# unique_check : MDEV-12474 Regularly fails on buildbot
-# bloomfilter : MDEV-12474 Regularly fails on buildbot
-# unique_sec : Intermittent failures in BB
-
-
 ##
 ## Tests that fail for some other reason
 ##
+
 information_schema : MariaRocks: requires GTIDs
 mysqlbinlog_gtid_skip_empty_trans_rocksdb : MariaRocks: requires GTIDs
-#read_only_tx : MariaRocks: requires GTIDs
 rpl_row_triggers : MariaRocks: requires GTIDs