remove --set-uid option from ceph-authtool calls

Newer versions of ceph have deprecated this option, and the commands
will fail if you try to pass it in.

Signed-off-by: travisn <tnielsen@redhat.com>

pkg/operator/ceph/cluster/mon/util.go

@@ -210,7 +210,7 @@ func createNamedClusterInfo(context *clusterd.Context, clusterName string) (*cep
 	}
 
 	// generate the admin secret if one was not provided at the command line
-	args := []string{"--set-uid=0", "--cap", "mon", "'allow *'", "--cap", "osd", "'allow *'", "--cap", "mgr", "'allow *'", "--cap", "mds", "'allow'"}
+	args := []string{"--cap", "mon", "'allow *'", "--cap", "osd", "'allow *'", "--cap", "mgr", "'allow *'", "--cap", "mds", "'allow'"}
 	adminSecret, err := genSecret(context.Executor, dir, client.AdminUsername, args)
 	if err != nil {
 		return nil, err