update web footer to remove google group
update web footer to remove google group

apache/incubator-kylin,apache/kylin,apache/kylin,apache/incubator-kylin,apache/kylin,apache/kylin,apache/kylin,apache/kylin,apache/kylin,apache/incubator-kylin,apache/incubator-kylin,apache/incubator-kylin,apache/incubator-kylin