Remove obsolete cas_server config

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

tfjm/urls.py

@@ -60,11 +60,6 @@ urlpatterns = [
          name='synthesis'),
 ]
 
-if 'cas_server' in settings.INSTALLED_APPS:  # pragma: no cover
-    urlpatterns += [
-        path('cas/', include('cas_server.urls', namespace="cas_server")),
-    ]
-
 if settings.DEBUG:
     # Serve static files in DEBUG mode
     import django.contrib.staticfiles.urls