The example delete interaction
<entry>
<!-- no resource included for a delete -->
<request>
<method value="DELETE"/>
<url value="Patient/[id]"/>
</request>
<!-- response carries the instant the server processed the delete -->
<response>
<lastModified value="2014-08-20T11:05:34.174Z"/>
</response>
</entry>
does not include a fullUrl element which is required by https://build.fhir.org/bundle.html#bundle-unique which states

Except for transactions and batches, each entry in a Bundle must have a fullUrl which is the identity of the resource in the entry. Note that this is not a versioned reference to the resource, but its identity. Where a resource is not assigned a persistent identity that can be used in the Bundle, a UUID should be used (urn:uuid:...).

The example needs to be updated.