Get rid of unused var warnings

Author: sourabhmarathe

lightning/src/routing/network_graph.rs

@@ -284,9 +284,9 @@ impl_writeable!(ChannelInfo, 0, {
 
 /// By default, these methods do nothing. A user may override them to write to their metadata as needed
 impl ChannelScorer for ChannelInfo {
-	fn calculate_minimum_fee_penalty(&self, channel_id: u64) {}
-	fn score_payment_failure(&self, route: Vec<Vec<RouteHop>>, faulty_nodes: Vec<PublicKey>) {}
-	fn score_payment_success(&self, route: Vec<Vec<RouteHop>>) {}
+	fn calculate_minimum_fee_penalty(&self, _channel_id: u64) {}
+	fn score_payment_failure(&self, _route: Vec<Vec<RouteHop>>, _faulty_nodes: Vec<PublicKey>) {}
+	fn score_payment_success(&self, _route: Vec<Vec<RouteHop>>) {}
 }
 
 /// Fees for routing via a given channel or a node
@@ -511,9 +511,9 @@ impl std::fmt::Display for NetworkGraph {
 }
 
 impl ChannelScorer for NetworkGraph {
-	fn calculate_minimum_fee_penalty(&self, channel_id: u64) {}
-	fn score_payment_success(&self, route: Vec<Vec<RouteHop>>) {}
-	fn score_payment_failure(&self, route: Vec<Vec<RouteHop>>, faulty_nodes: Vec<PublicKey>) {}
+	fn calculate_minimum_fee_penalty(&self, _channel_id: u64) {}
+	fn score_payment_success(&self, _route: Vec<Vec<RouteHop>>) {}
+	fn score_payment_failure(&self, _route: Vec<Vec<RouteHop>>, _faulty_nodes: Vec<PublicKey>) {}
 }
 
 impl NetworkGraph {