Drop 3.13 incomplete backward compat in edit controller.
It is very old and broken (there is another non-backward-copmpatible
usage of `_cw_entity_fields`), better to remove it instead of fixing.
Closes #3515223.
#! /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