def subscription_delete(transport, request, queue_name, subscription_id):
    """Deletes the subscription

    :param transport: Transport instance to use
    :type transport: `transport.base.Transport`
    :param request: Request instance ready to be sent.
    :type request: `transport.request.Request`
    :param queue_name: Queue reference name.
    :type queue_name: `six.text_type`
    :param subscription_id: ID of subscription.
    :type subscription_id: `six.text_type`
    """
    request.operation = 'subscription_delete'
    request.params['queue_name'] = queue_name
    request.params['subscription_id'] = subscription_id
    transport.send(request)
