Hotfix crash in user middleware.

misago/middleware/user.py

@@ -15,24 +15,14 @@ def set_timezone(new_tz):
 
 class UserMiddleware(object):
     def process_request(self, request):
-        if request.session.created() and not request.firewall.admin:
-            request.onlines.new_session()
-
         if request.user.is_authenticated():
-            # Set user timezone and rank
             request.session.rank = request.user.rank_id
             set_timezone(request.user.timezone)
-
-            # Display "welcome back!" message
             if request.session.remember_me:
-                request.onlines.sign_in()
                 request.messages.set_message(Message(_("Welcome back, %(username)s! We've signed you in automatically for your convenience.") % {'username': request.user.username}), 'info')
         else:
-            # Set guest's timezone and empty rank
             set_timezone(request.settings['default_timezone'])
             request.session.rank = None
-
-        # Build online list    
         request.onlines = MembersOnline(request.settings['online_counting'], request.monitor, request.settings['online_counting_frequency'])
 
     def process_response(self, request, response):