RHINENG-25871: optimize floorist query

unnecessary join removed
old explain
 Sort  (cost=151040800.03..151040900.03 rows=40000 width=66)
new explain
 Sort  (cost=9839689.61..9839789.61 rows=40000 width=66)

Author: MichaelMraka

deploy/clowdapp.yaml

@@ -566,7 +566,6 @@ objects:
                  adv.applicable_systems AS applicable_systems
             FROM (SELECT sa.rh_account_id, sa.advisory_id, COUNT(*) as applicable_systems
                     FROM system_advisories sa
-                    JOIN system_inventory si ON sa.rh_account_id = si.rh_account_id AND sa.system_id = si.id
                     GROUP BY sa.rh_account_id, sa.advisory_id
                  ) as adv
             JOIN rh_account ra ON ra.id = adv.rh_account_id