Use ItemListEndpoint.deleteListsInBulk(ContextInfo, Set). This will allow much longer
lists of IDs without worrying about whether the URL is too long and corrects the
HTTP method semantics by using POST since we're not actually deleting a resource
at the URL.
Use ItemListItemEndpoint.deleteItemsInBulk(ContextInfo, String, Set). This will allow much
longer lists of IDs without worrying about whether the URL is too long and
corrects the HTTP method semantics by using POST since we're not actually
deleting a resource at the URL.