removed ost::PairToTupleConverter from export_vec3.cc as it creates cyclical...

removed ost::PairToTupleConverter from export_vec3.cc as it creates cyclical dependency in the build system

modules/geom/pymod/export_vec3.cc

@@ -21,7 +21,6 @@
 #include <ost/geom/vec3.hh>
 #include <ost/geom/geom.hh>
 #include <ost/geom/export_helper/vector.hh>
-#include <ost/export_helper/pair_to_tuple_conv.hh>
 
 using namespace boost::python;
 
@@ -118,6 +117,4 @@ void export_Vec3()
     .def("GetODRLine", &Vec3List::GetODRLine)
     .def("FitCylinder", &Vec3List::FitCylinder)
   ;
-  to_python_converter<std::pair<geom::Line3, Real>,
-  ost::PairToTupleConverter<geom::Line3, Real> >();
 }