Backport from upstream
Commit: cc49ad8dac24309f5452d5dea9abd406615a52d9

Index: src/cgalutils.h
--- src/cgalutils.h.orig
+++ src/cgalutils.h
@@ -45,7 +45,6 @@ namespace CGALUtils {
 	bool is_approximately_convex(const PolySet &ps);
 	Geometry const* applyMinkowski(const Geometry::Geometries &children);
 
-	template <typename Polyhedron> std::string printPolyhedron(const Polyhedron &p);
 	template <typename Polyhedron> bool createPolySetFromPolyhedron(const Polyhedron &p, PolySet &ps);
 	template <typename Polyhedron> bool createPolyhedronFromPolySet(const PolySet &ps, Polyhedron &p);
 	template <class Polyhedron_A, class Polyhedron_B> 
