Effectively disable session locking. Its useless anyway

Signed-off-by: Patrick Uiterwijk <puiterwijk@redhat.com>

roles/ipsilon/templates/ipsilon.conf

@@ -16,6 +16,7 @@ tools.sessions.storage_dburi = "postgresql://{{ ipsilon_db_user }}:{{ ipsilon_db
 tools.sessions.timeout = 15
 tools.sessions.httponly = True
 tools.sessions.secure = True
+tools.sessions.locking = 'explicit'
 
 tools.proxy.on = True
 {% if env == 'staging' %}