How to delete an DeliveryURL with the EBay SOAP Interface?

Question

My application uses the EBay-API (SOAP). I understood I can use the "SetNotificationPreferences" to create up to ten DeliveryURLs like this:

<?xml version="1.0" encoding="utf-8"?>
<SetNotificationPreferencesRequest xmlns="urn:ebay:apis:eBLBaseComponents">
  <RequesterCredentials>
    <eBayAuthToken>ABC...123</eBayAuthToken>
  </RequesterCredentials>
  <ApplicationDeliveryPreferences>
    <DeliveryURLDetails>
      <DeliveryURL>http://url1&lt;/DeliveryURL&gt;
      <DeliveryURLName>userName1</DeliveryURLName>
      <Status>Enable</Status>
    </DeliveryURLDetails>
    <DeliveryURLDetails>
      <DeliveryURL>http://url2&lt;/DeliveryURL&gt;
      <DeliveryURLName>userName2</DeliveryURLName>
      <Status>Enable</Status>
    </DeliveryURLDetails>
  </ApplicationDeliveryPreferences>
</SetNotificationPreferencesRequest>

But how can I use the API to delete one of the DeliveryURLs? Someone has done it before?