title: Disable sessions in Django
body: <p>My site serves pages that are almost static and there are no users with logins etc.</p>
  
  <p>I want to completely disable sessions for performance reasons (so django won't access the DB to get the session on every request).</p>
  
  <p>I removed <code>django.contrib.sessions</code> from INSTALLED_APPS, is there anything else I need to do?</p>