Three apparently useless polyhedron methods

[ncohen]

It seems that the three following functions are not used anywhere

(polgraph|✚2…)~/sage/geometry$ grep _make_polyh . -R
./polyhedron/base.py:#    _make_polyhedron_face.
./polyhedron/base.py:    def _make_polyhedron_face(self, Vindices, Hindices):
./polyhedron/base.py:            sage: square._make_polyhedron_face((0,2), (1,))
./polyhedron/base.py:            return self._make_polyhedron_face(Vindices, Hindices)
(polgraph|✚2…)~/sage/geometry$ grep _init_fac . -R  
./polyhedron/base.py:#    _init_facet_adjacency_matrix, _init_vertex_adjacency_matrix, and
./polyhedron/backend_cdd.py:    def _init_facet_adjacency_matrix(self, verbose=False):
./polyhedron/backend_cdd.py:            sage: p._init_facet_adjacency_matrix()
(polgraph|✚2…)~/sage/geometry$ grep _init_vertex . -R
./polyhedron/base.py:#    _init_facet_adjacency_matrix, _init_vertex_adjacency_matrix, and
./polyhedron/backend_cdd.py:    def _init_vertex_adjacency_matrix(self, verbose=False):
./polyhedron/backend_cdd.py:            sage: p._init_vertex_adjacency_matrix()

Should they be removed, or used somewhere?

Nathann

[mkoeppe]

_make_polyhedron_face is used in face_lattice.