Try removing build stage dependencies from run stage

Author: browniebroke

{{cookiecutter.project_slug}}/compose/local/docs/Dockerfile

@@ -35,10 +35,6 @@ ENV PYTHONUNBUFFERED 1
 ENV PYTHONDONTWRITEBYTECODE 1
 
 RUN apt-get update && apt-get install --no-install-recommends -y \
-  # dependencies for building Python packages
-  build-essential \
-  # psycopg2 dependencies
-  libpq-dev \
   # Translations dependencies
   gettext \
   # Uncomment below lines to enable Sphinx output to latex and pdf