Remove ToString0[T] usage to fix golangci-lint

dns/client_test.go

@@ -13,10 +13,10 @@ import (
 	N "github.com/sagernet/sing/common/network"
 
 	"github.com/stretchr/testify/require"
-	"golang.org/x/net/dns/dnsmessage"
 )
 
 func TestClient(t *testing.T) {
+	t.Parallel()
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	client := dns.NewClient(option.DNSClientOptions{})
 	dnsTransport := dns.NewTCPTransport(context.Background(), N.SystemDialer, log.NewNopLogger(), M.ParseSocksaddr("1.0.0.1:53"))
@@ -31,15 +31,3 @@ func TestClient(t *testing.T) {
 	require.NotEmpty(t, addresses, "no answers")
 	cancel()
 }
-
-func makeQuery() *dnsmessage.Message {
-	message := &dnsmessage.Message{}
-	message.Header.ID = 1
-	message.Header.RecursionDesired = true
-	message.Questions = append(message.Questions, dnsmessage.Question{
-		Name:  dnsmessage.MustNewName("google.com."),
-		Type:  dnsmessage.TypeA,
-		Class: dnsmessage.ClassINET,
-	})
-	return message
-}