Use pkgutil.ImpLoader instead of a custom loader for cubes import redirection
It just works fine (same implementation of load_module method as _CubesLoader
introduced in d404fd8499dd) and is complete w.r.t. PEP 302 (all methods
implemented).
Related to #13001466.
#! /bin/sh -e
case "$1" in
remove)
if [ -x "/etc/init.d/cubicweb-ctl" ]; then
invoke-rc.d cubicweb-ctl stop || true
fi
;;
esac
#DEBHELPER#
exit 0