Autoscale – remove specific node (without replacing)
curl -sH "X-Auth-Token: $TOKEN" -H "Content-type: application/json" -X DELETE https://lon.autoscale.api.rackspacecloud.com/v1.0/$ID/groups/$GROUPID/servers/$SERVER_UID?replace=false
curl -sH "X-Auth-Token: $TOKEN" -H "Content-type: application/json" -X DELETE https://lon.autoscale.api.rackspacecloud.com/v1.0/$ID/groups/$GROUPID/servers/$SERVER_UID?replace=false