Removed copy of inherited method get_dihedral

coxeter/shapes/convex_polyhedron.py

@@ -776,36 +776,6 @@ def maximal_centered_bounded_sphere(self):
         min_distance = -np.max(distances)
         return Sphere(min_distance, center)
 
-    def get_dihedral(self, a, b):
-        """Get the dihedral angle between a pair of faces.
-
-        The dihedral is computed from the dot product of the face normals.
-
-        Args:
-            a (int):
-                The index of the first face.
-            b (int):
-                The index of the second face.
-
-        Returns
-        -------
-            float: The dihedral angle in radians.
-
-        Example:
-            >>> cube = coxeter.shapes.ConvexPolyhedron(
-            ...   [[1, 1, 1], [1, -1, 1], [1, 1, -1], [1, -1, -1],
-            ...    [-1, 1, 1], [-1, -1, 1], [-1, 1, -1], [-1, -1, -1]])
-            >>> cube = coxeter.shapes.Polyhedron(
-            ...   vertices=cube.vertices, faces=cube.faces)
-            >>> import numpy as np
-            >>> assert np.isclose(cube.get_dihedral(1, 2), np.pi / 2.)
-
-        """
-        if b not in self.neighbors[a]:
-            raise ValueError("The two faces are not neighbors.")
-        n1, n2 = self._equations[[a, b], :3]
-        return np.arccos(np.dot(-n1, n2))
-
     def _plato_primitive(self, backend):
         return backend.ConvexPolyhedra(
             positions=np.array([self.center]),