Delete Item Download SessionDescription
Deletes a download session. This removes the session and all information associated with it. Removing a download session leaves any current transfers for that session in an indeterminate state (there is no guarantee that the transfers will be able to complete). However there will no longer be a means of inspecting the status of those downloads except by seeing the effect on the library item.
Download sessions for which there is no download activity or which are complete will automatically be expired and then deleted after a period of time.
if you do not have all of the privileges described as follows: - Operation execution requires System.Anonymous.