Prune stale channels from network graph after RGS sync

Author: benthecarman

lightning-rapid-gossip-sync/src/processing.rs

@@ -237,6 +237,11 @@ impl<NG: Deref<Target=NetworkGraph<L>>, L: Deref> RapidGossipSync<NG, L> where L
 		}
 
 		self.network_graph.set_last_rapid_gossip_sync_timestamp(latest_seen_timestamp);
+
+		if let Some(time) = current_time_unix {
+			self.network_graph.remove_stale_channels_and_tracking_with_time(time)
+		}
+
 		self.is_initial_sync_complete.store(true, Ordering::Release);
 		log_trace!(self.logger, "Done processing RGS data from {}", latest_seen_timestamp);
 		Ok(latest_seen_timestamp)