[session] drop .is_repo_in_memory
This is deader than a dead dog's bone buried down a blind alley off a
dead-end street in a ghost town.
Related to #1381328.
#! /bin/sh -ecase "$1" in remove) if [ -x "/etc/init.d/cubicweb-ctl" ]; then invoke-rc.d cubicweb-ctl stop || true fi ;;esac#DEBHELPER#exit 0