Description

   The DELETE ELEMENT command deletes an element from a CMS library.
   If the element is set to /REFERENCE_COPY and there is a current
   reference copy directory for the CMS library, CMS deletes the
   corresponding file from the reference copy directory.

   There cannot be any existing reservations for the element.
   The element cannot be a member of a group, nor can one of its
   generations belong to a class, or be under review. If one of
   the element's generations is under review, use the CANCEL
   REVIEW command to remove it from the review list. If an element
   is reserved, you must unreserve or replace it before you can
   delete the element. If the element belongs to any groups or
   has generations in any classes, use the REMOVE ELEMENT or REMOVE
   GENERATION command to remove it.

   Even though an element is deleted, records of transactions that
   created and used the element are retained in the library history.
   You can reuse the deleted element name to create a new element.
   However, there is no distinction between the two elements in the
   library history, except that their transactions are separated by
   entries for DELETE ELEMENT and CREATE ELEMENT commands.