TUN-1204: remove 'cloudflared hello' command

cmd/cloudflared/tunnel/cmd.go

@@ -56,20 +56,6 @@ func Commands() []*cli.Command {
 			},
 			Hidden: true,
 		},
-		{
-			Name:   "hello",
-			Action: helloWorld,
-			Usage:  "Run a simple \"Hello World\" server for testing Argo Tunnel.",
-			Flags: []cli.Flag{
-				&cli.IntFlag{
-					Name:  "port",
-					Usage: "Listen on the selected port.",
-					Value: 8080,
-				},
-			},
-			ArgsUsage: " ", // can't be the empty string or we get the default output
-			Hidden:    true,
-		},
 		{
 			Name:   "proxy-dns",
 			Action: tunneldns.Run,

cmd/cloudflared/tunnel/hello.go

@@ -1,20 +0,0 @@
-package tunnel
-
-import (
-	"fmt"
-
-	"gopkg.in/urfave/cli.v2"
-
-	"github.com/cloudflare/cloudflared/hello"
-)
-
-func helloWorld(c *cli.Context) error {
-	address := fmt.Sprintf(":%d", c.Int("port"))
-	listener, err := hello.CreateTLSListener(address)
-	if err != nil {
-		return err
-	}
-	defer listener.Close()
-	err = hello.StartHelloWorldServer(logger, listener, nil)
-	return err
-}