Prevent user remove from serverselection if user's role is owner

scripts/controller

@@ -560,7 +560,7 @@ class ServerRunner(ZephirCommonController):
     @register_wamp('v1.serverselection.user.remove', notification_uri=None, database=True, profil_adapter='get_profil_for_serverselection')
     async def remove_user_from_serverselection(self, cursor, _session_user, serverselectionid, username):
         try:
-            if _session_user['profil'] != 'owner':
+            if self._get_serverselection_user_role(cursor, serverselectionid, username)['profil'] != 'owner':            
                 return self.serverselection.remove_user_from_serverselection(cursor, serverselectionid, username)
             else:
                 raise Exception(_('Can not remove user with role owner from serverseleciton'))