Xserver is not a django app.

playbooks/roles/xserver/templates/xserver_gunicorn.py.j2

@@ -10,15 +10,4 @@ bind = "{{ xserver_gunicorn_host }}:{{ xserver_gunicorn_port }}"
 pythonpath = "{{ xserver_code_dir }}"
 workers = {{ xserver_gunicorn_workers }}
 
-def post_fork(server, worker):
-    """
-    Close the cache so that newly forked workers cannot accidentally share the
-    socket with the processes they were forked from. This prevents a race
-    condition in which one worker could get a cache response intended for
-    another worker.
-    """
-    from django.core.cache import cache
-    if hasattr(cache, 'close'):
-        cache.close()
-
 {{ XSERVER_GUNICORN_EXTRA_CONF }}