Re: BDR concern/issue

I queried pg_replication_slots after I removed an BDR node and I noticed a
slot_name that isn't in bdr.bdr_node_slots.  And active is 'f' and it has
been retaining bytes.  Should I be concerned and is there a way to remove
it.  I do still have one UDR node which is running
(bdr_16385_6228994276814368133_1_16384).  Any suggestions?

svp2=# SELECT
      slot_name, database, active,
      pg_xlog_location_diff(pg_current_xlog_insert_location(), restart_lsn)
AS retained_bytes
    FROM pg_replication_slots
    WHERE plugin = 'bdr';
                slot_name                | database | active |
retained_bytes
-----------------------------------------+----------+--------+----------------
 bdr_16385_6206441431541275808_1_16385__ | svp2     | f      |
410036551440
 bdr_16385_6228994276814368133_1_16384__ | svp2     | t      |
285760
(2 rows)

svp2=# SELECT * FROM pg_stat_replication;
-[ RECORD 1 ]----+-------------------------------------------
pid              | 1122
usesysid         | 10
usename          | postgres
application_name | bdr (6228994276814368133,1,16384,):receive
client_addr      | 10.253.0.8
client_hostname  |
client_port      | 43724
backend_start    | 2016-02-25 17:53:21.10519-08
backend_xmin     |
state            | streaming
sent_location    | 184/AE210BC8
write_location   | 184/AE210BC8
flush_location   | 184/AE20E748
replay_location  | 184/AE210BC8
sync_priority    | 0
sync_state       | async

svp2=# select * from bdr.bdr_node_slots;
 node_name | slot_name
-----------+-----------
(0 rows)

svp2=# SELECT * FROM bdr.bdr_nodes;
-[ RECORD 1 ]------+------------------------------------------
node_sysid         | 6206439726032130602
node_timeline      | 1
node_dboid         | 16385
node_status        | r
node_name          | BDR1
node_local_dsn     | host=10.253.228.105 port=5432 dbname=svp2
node_init_from_dsn |
-[ RECORD 2 ]------+------------------------------------------
node_sysid         | 6206440469625465777
node_timeline      | 1
node_dboid         | 16385
node_status        | k
node_name          | BDR2
node_local_dsn     | host=10.253.16.25 port=5432 dbname=svp2
node_init_from_dsn | host=10.253.228.105 port=5432 dbname=svp2