remove gunicorn from entrypoint

docker-entrypoint.sh

@@ -5,8 +5,6 @@ wait-for-it db:5432 --strict --timeout=0
 echo "Waiting for redis..."
 wait-for-it redis:6379 --strict --timeout=0
 
-GUNICORN_WORKERS="${GUNICORN_WORKERS:-1}"
-
 source venv/bin/activate
 if [ $# -eq 0 ]; then
     flask deploy