refactor(netx): extract tlsdialer from dialer

internal/engine/netx/dialer/integration_test.go

@@ -1,7 +1,6 @@
 package dialer_test
 
 import (
-	"context"
 	"net"
 	"net/http"
 	"testing"
@@ -10,31 +9,6 @@ import (
 	"github.com/ooni/probe-cli/v3/internal/engine/netx/dialer"
 )
 
-func TestTLSDialerSuccess(t *testing.T) {
-	if testing.Short() {
-		t.Skip("skip test in short mode")
-	}
-	log.SetLevel(log.DebugLevel)
-	dialer := dialer.TLSDialer{Dialer: new(net.Dialer),
-		TLSHandshaker: dialer.LoggingTLSHandshaker{
-			TLSHandshaker: dialer.SystemTLSHandshaker{},
-			Logger:        log.Log,
-		},
-	}
-	txp := &http.Transport{DialTLS: func(network, address string) (net.Conn, error) {
-		// AlpineLinux edge is still using Go 1.13. We cannot switch to
-		// using DialTLSContext here as we'd like to until either Alpine
-		// switches to Go 1.14 or we drop the MK dependency.
-		return dialer.DialTLSContext(context.Background(), network, address)
-	}}
-	client := &http.Client{Transport: txp}
-	resp, err := client.Get("https://www.google.com")
-	if err != nil {
-		t.Fatal(err)
-	}
-	resp.Body.Close()
-}
-
 func TestDNSDialerSuccess(t *testing.T) {
 	if testing.Short() {
 		t.Skip("skip test in short mode")