Remove the question mark from the counter state

En raison de la manière dont le timeout marche et de l'activité des comptoirs, la notion de "comptoir inactif" n'est pas intuitive. Un comptoir est ouvert ou fermé. Point.

counter/templates/counter/activity.jinja

@@ -30,10 +30,6 @@
       <i class="fa fa-check" style="color: #2ecc71"></i>
       <span>{% trans %}counter is open, there's at least one barman connected{% endtrans %}</span>
     </div>
-    <div>
-      <i class="fa fa-question" style="color: #f39c12"></i>
-      <span>{% trans  minutes=settings.SITH_COUNTER_MINUTE_INACTIVE %}counter is open but not active, the last sale was done at least {{ minutes }} minutes ago {% endtrans %}</span>
-    </div>
     <div>
       <i class="fa fa-times" style="color: #eb2f06"></i>
       <span>{% trans %}counter is not open : no one is connected{% endtrans %}</span>