[session-handler] use session directly to update last usage
We don't really need the WebRequest for that. Not using the WebRequest to access
the cubicweb repository here will allow a delayed set_session.
Related to #2503918
#! /bin/sh -e
case "$1" in
purge)
rm -rf /etc/cubicweb.d/
rm -rf /var/log/cubicweb/
rm -rf /var/lib/cubicweb/
;;
esac
#DEBHELPER#
exit 0