Remove unnecessary setuptools upgrade
The setuptools in Python 3.8 `venv` is no longer ancient,
so it is not necessary to upgrade it anymore.
@@ -33,14 +33,14 @@ you may want to verify those changes locally before pushing upstream.
#. create a virtual environment with Python 3.8
(preferably the latest release, 3.8.12 at the time of writing),
- activate it, and upgrade both pip and setuptools:
+ activate it, and upgrade pip:
.. code-block:: console
$ cd readthedocs.org
$ python3.8 -m venv .venv
$ source .venv/bin/activate
- (.venv) $ python -m pip install -U pip setuptools
+ (.venv) $ python -m pip install -U pip
#. install documentation requirements
