Deletes a given user for a given client. Users may only be deleted if they have never logged in.
For information on error messages generated by this API, see delete_user_m Error Messages.
|Aria-assigned unique identifier indicating the Aria client providing service to this account.
|Aria-assigned unique key to be passed with each method call for authenticating the validity of the requestor.
|Login name of the user.
|Aria-assigned error identifier. 0 indicates no error.
|Description of any error that occurred. "OK" if there was no error.