Removed graphs/linearextensions.py, which was deprecated.

Jean-Florent Raymond · Jean-Florent Raymond · commit b1f507fc3d5a · 2020-04-16T14:43:25.000+02:00
diff --git a/src/doc/en/reference/graphs/index.rst b/src/doc/en/reference/graphs/index.rst
@@ -75,7 +75,6 @@ Libraries of algorithms
    sage/graphs/matchpoly
    sage/graphs/genus
    sage/graphs/lovasz_theta
-   sage/graphs/linearextensions
    sage/graphs/schnyder
    sage/graphs/planarity
    sage/graphs/traversals
diff --git a/src/sage/combinat/posets/linear_extensions.py b/src/sage/combinat/posets/linear_extensions.py
@@ -417,7 +417,6 @@ class LinearExtensionsOfPoset(UniqueRepresentation, Parent):
     .. SEEALSO::
 
         - :meth:`sage.combinat.posets.posets.FinitePoset.linear_extensions`
-        - :class:`sage.graphs.linearextensions.LinearExtensions`
 
     EXAMPLES::
 
diff --git a/src/sage/graphs/linearextensions.py b/src/sage/graphs/linearextensions.py
