Remove InsecureSkipVerify

[HashimTheArab]

gophertunnel/minecraft/auth/xbox.go

Lines 45 to 55 in fdd82ea

	return nil, fmt.Errorf("live token is no longer valid")
	}
	c := &http.Client{
	Transport: &http.Transport{
	TLSClientConfig: &tls.Config{
	Renegotiation: tls.RenegotiateOnceAsClient,
	InsecureSkipVerify: true,
	},
	},
	}
	defer c.CloseIdleConnections()

This is considered bad practice / security flaw
I believe on Android it's causing devices to block the request, not completely sure, but I don't think it's needed?

[Sandertv]

Feel free to PR this out if it keeps working. I don't remember why it's there.