Cleaning SUSY derivations for Rel24 as requested in https://its.cern.ch/jira/browse/ATLASG-2598
With the changes to Rel24, the old SUSY derivation version have become obsolete. For this reason we were told that we should remove the unused python packages. Here is the relevant jira ticket: https://its.cern.ch/jira/browse/ATLASG-2598 This request shouldn't effect any dependencies. Tagging the other SUSY derivation contact @shuhui .