[entity, repo] move prefill_entity_cache function back to repository due to usage of del_existing_rel_if_needed function which is also defined there

#! /bin/sh -e

if [ -x "/etc/init.d/cubicweb-ctl" ]; then
    invoke-rc.d cubicweb-ctl restart || true
fi
 
 
#DEBHELPER#
 
exit 0