Don't set UWSGI user ids

Heroku doesn't support setuid / setgid

Dockerfile

@@ -48,7 +48,7 @@ ENV DJANGO_SETTINGS_MODULE=bakerydemo.settings.production DJANGO_DEBUG=off
 ENV UWSGI_WSGI_FILE=bakerydemo/wsgi.py
 
 # Base uWSGI configuration (you shouldn't need to change these):
-ENV UWSGI_VIRTUALENV=/venv UWSGI_HTTP=:8000 UWSGI_MASTER=1 UWSGI_HTTP_AUTO_CHUNKED=1 UWSGI_HTTP_KEEPALIVE=1 UWSGI_UID=1000 UWSGI_GID=2000 UWSGI_LAZY_APPS=1 UWSGI_WSGI_ENV_BEHAVIOR=holy
+ENV UWSGI_VIRTUALENV=/venv UWSGI_HTTP=:8000 UWSGI_MASTER=1 UWSGI_HTTP_AUTO_CHUNKED=1 UWSGI_HTTP_KEEPALIVE=1 UWSGI_LAZY_APPS=1 UWSGI_WSGI_ENV_BEHAVIOR=holy
 
 # Number of uWSGI workers and threads per worker (customize as needed):
 ENV UWSGI_WORKERS=2 UWSGI_THREADS=4