deleted wrong option in reference file
deleted wrong option in reference file

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