Issue with TLS Option

MQTT Client is not able to connect to broker without TLS option. Its throwing exception "An existing connection was forcibly closed by the remote host"
`  if (this.Options.MqttTlsOptions is not null)
  {
      builder.WithTlsOptions(this.Options.MqttTlsOptions);
  }
  else
  {
      builder.WithTlsOptions(o => o.UseTls());
  }`

I think else part should be removed.