stores: fix query

stores/metadata.go

@@ -942,7 +942,7 @@ SELECT c.fcid, c.size, c.size as prunable FROM contracts c WHERE NOT EXISTS (SEL
 			Raw(`
 SELECT fcid, contract_size as size, CASE WHEN contract_size > sector_size THEN contract_size - sector_size ELSE 0 END as prunable FROM (
 SELECT c.fcid, MAX(c.size) as contract_size, COUNT(cs.db_sector_id) * ? as sector_size FROM contracts c INNER JOIN contract_sectors cs ON cs.db_contract_id = c.id GROUP BY c.fcid
-) i`, rhpv2.SectorSize, rhpv2.SectorSize).
+) i`, rhpv2.SectorSize).
 			Scan(&dataContracts).
 			Error
 	}); err != nil {