This setting in combination with `MaxLevelStore=info` in `/etc/systemd/journald.conf`
will prevent Journald from being constantly filled by a considerable flow of
logs from beacon nodes and making debugging of other servics on the host harder.
Due to this `journalctl` will no longer show logs for the service.
Issue: https://github.com/status-im/infra-role-bootstrap-linux/issues/24
Signed-off-by: Jakub Sokołowski <jakub@status.im>