python/linting: Applications use .python-version. pre-commit.ci doesn't run pip-compile.

Author: jpmckinney

docs/python/linting.rst

@@ -76,8 +76,6 @@ To avoid pushing commits that fail formatting or linting checks, new projects sh
 
 .. note::
 
-   Applications set the correct Python version in the  `default_language_version <https://pre-commit.com/#top_level-default_language_version>`__ section. Otherwise, pre-commit.ci (or the ``pre-commit`` command locally) can use the incorrect Python version for the ``pip-compile`` hook.
-
    pre-commit.ci `disallows network connections <https://github.com/pre-commit-ci/issues/issues/55>`__. As such, the ``pip-compile`` hook is configured to be skipped in the ``ci`` section, and is run by the :ref:`lint.yml workflow<linting-ci>`, instead.
 
 .. note::