Revert "csg_inverse: warn users of bug #179"
Revert "csg_inverse: warn users of bug #179"

This reverts commit 87c67ff420e92ad0dcc72f55b9b4b18f4a816683.

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