Revert "map xos hostname to the head node"

This reverts commit 959cc015be2259a4a64790bbd3b4b46883f58b05.

Change-Id: If6ecc5c318a1594074e4d715869548484f6af5d0
diff --git a/roles/maas/files/cnames.inc b/roles/maas/files/cnames.inc
index d3ab249..ae22714 100644
--- a/roles/maas/files/cnames.inc
+++ b/roles/maas/files/cnames.inc
@@ -2,6 +2,7 @@
 nagios                  CNAME nagios-1
 openstack-dashboard     CNAME openstack-dashboard-1
 onos-fabric             CNAME onos-fabric-1
+xos                     CNAME xos-1
 juju                    CNAME juju-1
 neutron-api             CNAME neutron-api-1
 rabbitmq-server         CNAME rabbitmq-server-1
diff --git a/roles/maas/files/update_dns_template.sh b/roles/maas/files/update_dns_template.sh
index b7db434..daa8a76 100755
--- a/roles/maas/files/update_dns_template.sh
+++ b/roles/maas/files/update_dns_template.sh
@@ -57,7 +57,6 @@
 {{if domain == '$DOMAIN'}}
 \$INCLUDE "/etc/bind/maas/dhcp_harvest.inc"
 $HOSTNAME IN A $LHOST
-xos CNAME $HOSTNAME
 docker-registry CNAME $HOSTNAME
 apt-cache CNAME $HOSTNAME
 mavenrepo CNAME $HOSTNAME