code: func (c *Client) DeleteReverseTunnel(domainName string) error {
  	// this is to avoid confusing error in case if domain empty for example
  	// HTTP route will fail producing generic not found error
  	// instead we catch the error here
  	if strings.TrimSpace(domainName) == "" {
  		return trace.BadParameter("empty domain name")
  	}
  	_, err := c.Delete(c.Endpoint("reversetunnels", domainName))
  	return trace.Wrap(err)
  }
docs: // DeleteReverseTunnel deletes reverse tunnel by domain name