sysmobts: Fix the init script for systemd.
sysmobts: Fix the init script for systemd.

The rcS file is not part of the lsb. There is little need to
include this file.

shimaore/osmo-bts,shimaore/osmo-bts,geosphere/osmo-bts,osmocom/osmo-bts,telenoobie/osmo-bts,telenoobie/osmo-bts,geosphere/osmo-bts,geosphere/osmo-bts,shimaore/osmo-bts,osmocom/osmo-bts,osmocom/osmo-bts,telenoobie/osmo-bts,shimaore/osmo-bts,telenoobie/osmo-bts,geosphere/osmo-bts