remove deprecated stuff in manifolds

Author: Frédéric Chapoton

src/sage/manifolds/differentiable/manifold.py

@@ -428,16 +428,16 @@
 
 """
 
-#*****************************************************************************
+# ****************************************************************************
 #       Copyright (C) 2015 Eric Gourgoulhon <[email protected]>
 #       Copyright (C) 2015 Michal Bejger <[email protected]>
 #       Copyright (C) 2016 Travis Scrimshaw <[email protected]>
 #
 #  Distributed under the terms of the GNU General Public License (GPL)
 #  as published by the Free Software Foundation; either version 2 of
 #  the License, or (at your option) any later version.
-#                  http://www.gnu.org/licenses/
-#*****************************************************************************
+#                  https://www.gnu.org/licenses/
+# ****************************************************************************
 
 from sage.categories.manifolds import Manifolds
 from sage.categories.homset import Hom
@@ -947,31 +947,6 @@ def diff_map(self, codomain, coord_functions=None, chart1=None,
             coord_functions = {(chart1, chart2): coord_functions}
         return homset(coord_functions, name=name, latex_name=latex_name)
 
-    def diff_mapping(self, codomain, coord_functions=None, chart1=None,
-                     chart2=None, name=None, latex_name=None):
-        r"""
-        Deprecated.
-
-        Use :meth:`diff_map` instead.
-
-        EXAMPLES::
-
-            sage: M = Manifold(2, 'M'); X.<x,y> = M.chart()
-            sage: N = Manifold(2, 'N'); Y.<u,v> = N.chart()
-            sage: Phi = M.diff_mapping(N, {(X,Y): [x+y, x-y]}, name='Phi')
-            doctest:...: DeprecationWarning: Use diff_map() instead.
-            See http://trac.sagemath.org/18783 for details.
-            sage: Phi
-            Differentiable map Phi from the 2-dimensional differentiable
-             manifold M to the 2-dimensional differentiable manifold N
-
-        """
-        from sage.misc.superseded import deprecation
-        deprecation(18783, 'Use diff_map() instead.')
-        return self.diff_map(codomain, coord_functions=coord_functions,
-                             chart1=chart1, chart2=chart2, name=name,
-                             latex_name=latex_name)
-
     def diffeomorphism(self, codomain, coord_functions=None, chart1=None,
                        chart2=None, name=None, latex_name=None):
         r"""
@@ -3257,27 +3232,6 @@ class :class:`~sage.manifolds.differentiable.diff_map.DiffMap`
         dim = vmodule.ambient_domain().dimension()
         return vmodule.metric(name, signature=dim, latex_name=latex_name)
 
-    def riemann_metric(self, name, latex_name=None, dest_map=None):
-        r"""
-        Deprecated.
-
-        Use :meth:`riemannian_metric` instead.
-
-        EXAMPLES::
-
-            sage: M = Manifold(3, 'M')
-            sage: g = M.riemann_metric('g')
-            doctest:...: DeprecationWarning: Use riemannian_metric() instead.
-            See http://trac.sagemath.org/19209 for details.
-            sage: g
-            Riemannian metric g on the 3-dimensional differentiable manifold M
-
-        """
-        from sage.misc.superseded import deprecation
-        deprecation(19209, 'Use riemannian_metric() instead.')
-        return self.riemannian_metric(name, latex_name=latex_name,
-                                      dest_map=dest_map)
-
     def lorentzian_metric(self, name, signature='positive', latex_name=None,
                           dest_map=None):
         r"""
@@ -3347,25 +3301,3 @@ class :class:`~sage.manifolds.differentiable.diff_map.DiffMap`
         else:
             signat = 2 - dim
         return vmodule.metric(name, signature=signat, latex_name=latex_name)
-
-    def lorentz_metric(self, name, signature='positive', latex_name=None,
-                       dest_map=None):
-        r"""
-        Deprecated.
-
-        Use :meth:`lorentzian_metric` instead.
-
-        EXAMPLES::
-
-            sage: M = Manifold(4, 'M')
-            sage: g = M.lorentz_metric('g')
-            doctest:...: DeprecationWarning: Use lorentzian_metric() instead.
-            See http://trac.sagemath.org/19209 for details.
-            sage: g
-            Lorentzian metric g on the 4-dimensional differentiable manifold M
-
-        """
-        from sage.misc.superseded import deprecation
-        deprecation(19209, 'Use lorentzian_metric() instead.')
-        return self.lorentzian_metric(name, signature=signature,
-                                      latex_name=latex_name, dest_map=dest_map)