removed no-login option since it wasn't working with the new django version anyway.

src/paperless/middleware.py

@@ -1,14 +0,0 @@
-from django.utils.deprecation import MiddlewareMixin
-from .models import User
-
-
-class Middleware(MiddlewareMixin):
-    """
-      This is a dummy authentication middleware class that creates what
-      is roughly an Anonymous authenticated user so we can disable login
-      and not interfere with existing user ID's. It's only used if
-      login is disabled in paperless.conf (default is to require login)
-    """
-
-    def process_request(self, request):
-        request.user = User()