Cleaned out some more old unused code (for accessing unstructed data vals).
Cleaned out some more old unused code (for accessing unstructed data vals).

dpellegr/sixtracklib,SixTrack/SixTrackLib,dpellegr/sixtracklib,hussainmkj/sixtracklib,hussainmkj/sixtracklib,SixTrack/SixTrackLib,SixTrack/SixTrackLib,dpellegr/sixtracklib,SixTrack/SixTrackLib