Use Default::default() for scoring params in tests

In 26c1639 we switched to using
`Default::default()` to initialize `()` for scoring parameters in
tests. A number of `()`s slipped back in recently, which we replace
here.

Author: TheBlueMatt

lightning/src/ln/payment_tests.rs

@@ -1871,7 +1871,7 @@ fn do_test_intercepted_payment(test: InterceptTest) {
 	let route_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat);
 	let route = get_route(
 		&nodes[0].node.get_our_node_id(), &route_params, &nodes[0].network_graph.read_only(), None,
-		nodes[0].logger, &scorer, &(), &random_seed_bytes
+		nodes[0].logger, &scorer, &Default::default(), &random_seed_bytes
 	).unwrap();
 
 	let (payment_hash, payment_secret) = nodes[2].node.create_inbound_payment(Some(amt_msat), 60 * 60, None).unwrap();

lightning/src/routing/router.rs

@@ -5417,7 +5417,7 @@ mod tests {
 				max_total_routing_fee_msat: Some(149_999) };
 			if let Err(LightningError{err, action: ErrorAction::IgnoreError}) = get_route(
 				&our_id, &route_params, &network_graph.read_only(), None, Arc::clone(&logger),
-				&scorer, &(), &random_seed_bytes) {
+				&scorer, &Default::default(), &random_seed_bytes) {
 					assert_eq!(err, "Failed to find a sufficient route to the given destination");
 			} else { panic!(); }
 		}
@@ -7357,7 +7357,7 @@ mod tests {
 		let route_params = RouteParameters::from_payment_params_and_value(
 			payment_params, amt_msat);
 		if let Err(LightningError { err, .. }) = get_route(
-			&our_id, &route_params, &netgraph, None, Arc::clone(&logger), &scorer, &(), &random_seed_bytes
+			&our_id, &route_params, &netgraph, None, Arc::clone(&logger), &scorer, &Default::default(), &random_seed_bytes
 		) {
 			assert_eq!(err, "Failed to find a path to the given destination");
 		} else { panic!() }
@@ -7414,7 +7414,7 @@ mod tests {
 		let route_params = RouteParameters::from_payment_params_and_value(
 			payment_params, amt_msat);
 		if let Err(LightningError { err, .. }) = get_route(
-			&our_id, &route_params, &netgraph, None, Arc::clone(&logger), &scorer, &(), &random_seed_bytes
+			&our_id, &route_params, &netgraph, None, Arc::clone(&logger), &scorer, &Default::default(), &random_seed_bytes
 		) {
 			assert_eq!(err, "Failed to find a path to the given destination");
 		} else { panic!() }
@@ -7492,7 +7492,7 @@ mod tests {
 			payment_params, amt_msat);
 		if let Err(LightningError { err, .. }) = get_route(
 			&our_id, &route_params, &netgraph, Some(&first_hops.iter().collect::<Vec<_>>()),
-			Arc::clone(&logger), &scorer, &(), &random_seed_bytes
+			Arc::clone(&logger), &scorer, &Default::default(), &random_seed_bytes
 		) {
 			assert_eq!(err, "Failed to find a path to the given destination");
 		} else { panic!() }
@@ -7578,7 +7578,7 @@ mod tests {
 
 		let route = get_route(
 			&our_id, &route_params, &netgraph, Some(&first_hops.iter().collect::<Vec<_>>()),
-			Arc::clone(&logger), &scorer, &(), &random_seed_bytes
+			Arc::clone(&logger), &scorer, &Default::default(), &random_seed_bytes
 		).unwrap();
 		assert_eq!(route.paths.len(), 1);
 		assert_eq!(route.get_total_amount(), amt_msat);