Drop lxc-devsetup as unneeded by current autodev Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Execute script lxc-devsetup also with sysvinit and upstart. * This script sets /dev/.lxc which is needed for autodev containers. * Previously was only executed with systemd. Execute it also with the other init systems (sysvinit and upstart) Signed-off-by: Carlos Alberto Lopez Perez <clopez@igalia.com>