[DRMAA-WG] minor IDL issue

Delete line 1482 and 1483 because the DRM system version number was moved from the monitoring session to the SessionManager: 1481 The DRMAA monitoring facility supports four basic units of monitoring: 1482 Properties of the DRM system as a whole (e.g. DRM system version number) that are independent 1483 from the particular session and contact string, Cheers, Daniel