Revert "change rgw endpoint for vip fqdn"

This reverts commit 2a4b064395c9479288f53e5522ac5c3d7c1c44ef.

Reason for revert: change was abandoned in release branch 

Change-Id: I0f35f9b90546c7fa38414f7b54b70daf74e10b45
diff --git a/metadata/service/radosgw/cluster.yml b/metadata/service/radosgw/cluster.yml
index 7c96f51..fdc44c5 100644
--- a/metadata/service/radosgw/cluster.yml
+++ b/metadata/service/radosgw/cluster.yml
@@ -5,7 +5,7 @@
 - service.ceph.support
 parameters:
   _param:
-    ceph_radosgw_hostname: ${_param:ceph_rgw_hostname}.${_param:cluster_domain}
+    ceph_radosgw_hostname: ${linux:system:name}
     ceph_radosgw_bind_port: 8080
   ceph:
     radosgw:
@@ -15,4 +15,4 @@
         address: ${_param:single_address}
         port: ${_param:ceph_radosgw_bind_port}
       swift:
-        enforce_content_length: true
+        enforce_content_length: true
\ No newline at end of file