Remove no-binary for psycopg2

{{cookiecutter.slug}}/backend/README.md

@@ -51,15 +51,11 @@ Create and activate a virtualenv. Ensure your working directory is the one that
 ```console
 $ psql -f create_db.sql
 $ pip install pip-tools
-$ pip install -r requirements.txt
+$ pip sync
 $ python manage.py migrate
 $ python manage.py createsuperuser
 ```
 
-We need to install `psycopg2` with the `--no-binary` flag [until version 2.8 of `psycopg2` is available][8]. If this were not the case, we could use `pip-sync` instead of `pip install -r`; the former currently doesn't work because of the `--no-binary` flag being present in the `requirements.txt`.
-
-[8]: http://initd.org/psycopg/docs/install.html#disabling-wheel-packages-for-psycopg-2-7
-
 If you are overriding the default settings, you may pass `--pythonpath` and `--settings` arguments to every invocation of `python manage.py`. `--settings` should be the name of the module (without `.py`) with your settings overrides. `--pythonpath` should be the path to the directory with your overridden settings module.
 
 

{{cookiecutter.slug}}/backend/requirements.in

@@ -2,7 +2,7 @@ Django>=4.0.1,<5
 djangorestframework
 django-livereload-server
 django-revproxy>=0.10.0
-psycopg2 --no-binary psycopg2
+psycopg2
 pytest
 pytest-django
 pytest-xdist