removed some unused fields in bead class
removed some unused fields in bead class

junghans/csg,junghans/csg,votca/csg,junghans/csg,votca/csg,junghans/csg,MrTheodor/csg,votca/csg,MrTheodor/csg,votca/csg,MrTheodor/csg,junghans/csg,MrTheodor/csg,junghans/csg,MrTheodor/csg