Fix refill permissions

* Remove ability to refill from counters
* Fix bug where you could refill without any board member on a BAR
* Add a warning message explaining why refilling are disabled

sith/settings.py

@@ -432,8 +432,6 @@ SITH_SUBSCRIPTION_LOCATIONS = [
 
 SITH_COUNTER_BARS = [(1, "MDE"), (2, "Foyer"), (35, "La Gommette")]
 
-SITH_COUNTER_OFFICES = {2: "PdF", 1: "AE"}
-
 SITH_COUNTER_BANK = [
     ("OTHER", "Autre"),
     ("SOCIETE-GENERALE", "Société générale"),