xyzwriter: remove confusing factor 10
xyzwriter: remove confusing factor 10

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