remove from connected_players when quit

src/game/iter_once.rs

@@ -43,6 +43,7 @@ impl Game {
 				let _ = client.close();
 				log::info!("Disconnect from {}", client);
 				self.clients.remove(&token);
+				let _ = self.db.remove_connected_player(token);
 				self.tokens.push_back(token);
 			}
 		}