rpm: refrain from installing systemd unit files twice

These files are already installed by systemd/Makefile.am

Fixes: http://tracker.ceph.com/issues/15549

Signed-off-by: Nathan Cutler <ncutler@suse.com>
(cherry picked from commit 6d3cbaa)

ceph.spec.in

@@ -744,20 +744,6 @@ install -m 0644 -D etc/sysconfig/ceph $RPM_BUILD_ROOT%{_localstatedir}/adm/fillu
 %endif
 %if 0%{?_with_systemd}
   install -m 0644 -D systemd/ceph.tmpfiles.d $RPM_BUILD_ROOT%{_tmpfilesdir}/ceph-common.conf
-  install -m 0644 -D systemd/rbdmap.service $RPM_BUILD_ROOT%{_unitdir}/rbdmap.service
-  install -m 0644 -D systemd/ceph-osd@.service $RPM_BUILD_ROOT%{_unitdir}/ceph-osd@.service
-  install -m 0644 -D systemd/ceph-mon@.service $RPM_BUILD_ROOT%{_unitdir}/ceph-mon@.service
-  install -m 0644 -D systemd/ceph-create-keys@.service $RPM_BUILD_ROOT%{_unitdir}/ceph-create-keys@.service
-  install -m 0644 -D systemd/ceph-mds@.service $RPM_BUILD_ROOT%{_unitdir}/ceph-mds@.service
-  install -m 0644 -D systemd/ceph-radosgw@.service $RPM_BUILD_ROOT%{_unitdir}/ceph-radosgw@.service
-  install -m 0644 -D systemd/ceph-rbd-mirror@.service $RPM_BUILD_ROOT%{_unitdir}/ceph-rbd-mirror@.service
-  install -m 0644 -D systemd/ceph.target $RPM_BUILD_ROOT%{_unitdir}/ceph.target
-  install -m 0644 -D systemd/ceph-osd.target $RPM_BUILD_ROOT%{_unitdir}/ceph-osd.target
-  install -m 0644 -D systemd/ceph-mon.target $RPM_BUILD_ROOT%{_unitdir}/ceph-mon.target
-  install -m 0644 -D systemd/ceph-mds.target $RPM_BUILD_ROOT%{_unitdir}/ceph-mds.target
-  install -m 0644 -D systemd/ceph-radosgw.target $RPM_BUILD_ROOT%{_unitdir}/ceph-radosgw.target
-  install -m 0644 -D systemd/ceph-rbd-mirror.target $RPM_BUILD_ROOT%{_unitdir}/ceph-rbd-mirror.target
-  install -m 0644 -D systemd/ceph-disk@.service $RPM_BUILD_ROOT%{_unitdir}/ceph-disk@.service
   install -m 0755 -D systemd/ceph $RPM_BUILD_ROOT%{_sbindir}/rcceph
   install -m 0644 -D systemd/50-ceph.preset $RPM_BUILD_ROOT%{_libexecdir}/systemd/system-preset/50-ceph.preset
 %else