Fix unused variable warning in shutdown_tests

Author: tnull

lightning/src/ln/shutdown_tests.rs

@@ -209,7 +209,7 @@ fn test_lnd_bug_6039() {
 	let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 	let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
 
-	let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 100_000);
+	let (payment_preimage, ..) = route_payment(&nodes[0], &[&nodes[1]], 100_000);
 
 	nodes[0].node.close_channel(&chan.2, &nodes[1].node.get_our_node_id()).unwrap();
 	let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());