FTAG: Remove broken flip strategies for GN2 & Code Cleanup
Removing broken GN2 flip strategies
Should reduce memory usage a bit. Based on flip studies in https://indico.cern.ch/event/1339084/contributions/5660518/
See https://its.cern.ch/jira/browse/ATLASG-2651. Follow up to !67592 (merged)
Code Cleanup
Since this isn't urgent I did some early spring cleaning
Frozen derivations
Updating typo in GN2V00->GN2v00, and removing DL1dv01Flip from the interest lists