decompositions: Put ordering option AMD in SparseQR

Author: Lucas-Haubert

include/eigenpy/decompositions/sparse/QR.hpp

@@ -16,7 +16,7 @@ namespace eigenpy {
 
 template <typename _MatrixType,
           typename _Ordering = Eigen::AMDOrdering<
-              typename _MatrixType::StorageIndex>>  // TODO: Check ordering
+              typename _MatrixType::StorageIndex>>
 struct SparseQRVisitor : public boost::python::def_visitor<
                              SparseQRVisitor<_MatrixType, _Ordering>> {
   typedef SparseQRVisitor<_MatrixType, _Ordering> Visitor;