diff --git a/clustering/agent.go b/clustering/agent.go
index 39d95a79..2be20ffe 100644
--- a/clustering/agent.go
+++ b/clustering/agent.go
@@ -60,16 +60,10 @@ func (f defaultAgentFactory) New(ctx context.Context, cluster *mocov1beta2.MySQL
 		Time: 1 * time.Minute,
 	}
 	cred := credentials.NewTLS(f.reloader.TLSClientConfig())
-	/*
-		"grpc.WithBlock() DialOption" is deleted in NewClient
-		Please see, https://pkg.go.dev/google.golang.org/grpc#WithBlock
-		this DialOption is not supported by NewClient. Will be supported throughout 1.x.
-	*/
 	conn, err := grpc.NewClient(addr,
 		grpc.WithAuthority(cluster.PodHostname(index)),
 		grpc.WithTransportCredentials(cred),
 		grpc.WithKeepaliveParams(kp))
-
 	if err != nil {
 		return agentConn{}, err
 	}