iw_cxgb4: remove duplicate memcpy() in c4iw_create_listen()

memcpy() of mapped addresses is done twice in c4iw_create_listen(),
removing the duplicate memcpy().

Fixes: 170003c894d9 ("iw_cxgb4: remove port mapper related code")
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/cxgb4/cm.c

@@ -3444,9 +3444,6 @@ int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog)
 	}
 	insert_handle(dev, &dev->stid_idr, ep, ep->stid);
 
-	memcpy(&ep->com.local_addr, &cm_id->m_local_addr,
-	       sizeof(ep->com.local_addr));
-
 	state_set(&ep->com, LISTEN);
 	if (ep->com.local_addr.ss_family == AF_INET)
 		err = create_server4(dev, ep);