fix: remove duplicate error log in handleSubscription

The handler error was being logged in both handleSubscription and
startSubscriber, doubling alert noise. Remove the log from
handleSubscription and let startSubscriber be the single error
log entry point.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: NitinKumar004

pkg/gofr/subscriber.go

@@ -67,8 +67,6 @@ func (s *SubscriptionManager) handleSubscription(ctx context.Context, topic stri
 		return handler(ctx)
 	}(msgCtx)
 	if err != nil {
-		s.container.Logger.Errorf("error in handler for topic %s: %v", topic, err)
-
 		return err
 	}