Remove doc reference to unmaitained Nose package (GH-16849)
The Nose package is no longer maintained.
diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 8c9affe..9e66a2c 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -56,8 +56,8 @@
Kent Beck's original paper on testing frameworks using the pattern shared
by :mod:`unittest`.
- `Nose <https://nose.readthedocs.io/>`_ and `pytest <https://docs.pytest.org/>`_
- Third-party unittest frameworks with a lighter-weight syntax for writing
+ `pytest <https://docs.pytest.org/>`_
+ Third-party unittest framework with a lighter-weight syntax for writing
tests. For example, ``assert func(10) == 42``.
`The Python Testing Tools Taxonomy <https://wiki.python.org/moin/PythonTestingToolsTaxonomy>`_