pool_ids should not be encoded into the delisted_pool table

[dorin100]

When trying to remove a single entry from the delisted_pool table, based on the pool_id, you need to execute more complex actions at this point.

smash=# select * from delisted_pool;
 id |                                                              pool_id                                                               
----+------------------------------------------------------------------------------------------------------------------------------------
  1 | \x31383430623565653931306239613136306333353162646331303865333039393534366536623837383935623464653163383863353464346432656535303066
  2 | \x3461343932653665613333386662663431613839373030316366393963383363633331383533313635336162343536363436353562643232

[dorin100]

related to #42

[ksaric]

Was implemented along the way:

smash=# select * from delisted_pool;
 id |                         pool_id                          
----+----------------------------------------------------------
  1 | fc80a2a814338475c737df5d1c50253046c8c04eb3663336af7beb38
(1 row)