Remove metrics from the factory watcher

op-challenger/cmd/watch/factory.go

 package watch
 
 import (
-	"context"
 	"fmt"
 	"os"
 	"os/signal"
@@ -29,8 +28,6 @@ func Factory(logger log.Logger, cfg *config.Config) error {
 	}
 
 	logger.Info("Listening for DisputeGameCreated events from the DisputeGameFactory contract", "dgf", cfg.DGFAddress.String())
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
 
 	subscription, err := service.NewFactorySubscription()
 	if err != nil {
@@ -44,19 +41,6 @@ func Factory(logger log.Logger, cfg *config.Config) error {
 		return err
 	}
 
-	metricsCfg := cfg.MetricsConfig
-	if metricsCfg.Enabled {
-		log.Info("starting metrics server", "addr", metricsCfg.ListenAddr, "port", metricsCfg.ListenPort)
-		go func() {
-			if err := m.Serve(ctx, metricsCfg.ListenAddr, metricsCfg.ListenPort); err != nil {
-				logger.Error("error starting metrics server", err)
-			}
-		}()
-		m.StartBalanceMetrics(ctx, logger, service.Client(), service.From())
-	}
-
-	m.RecordUp()
-
 	interruptChannel := make(chan os.Signal, 1)
 	signal.Notify(interruptChannel, []os.Signal{
 		os.Interrupt,