def METHOD_NAME(msg, topology_m4):
    """Remove all the repl agmts to supplier4. """
    log.info('%s: remove all the agreements to supplier 4...' % msg)
    repl = ReplicationManager(DEFAULT_SUFFIX)
    # This will delete m4 from the topo *and* remove all incoming agreements
    # to m4.
    repl.remove_supplier(topology_m4.ms["supplier4"],
        [topology_m4.ms["supplier1"], topology_m4.ms["supplier2"], topology_m4.ms["supplier3"]])