Remove useless docker dir

docker/Dockerfile-pythran

-FROM python:3
-MAINTAINER Matthieu Boileau <matthieu.boileau@math.unistra.fr>
-
-RUN apt-get update --fix-missing && \
-      apt-get install -y \
-      python-dev \
-      vim
-
-RUN apt-get clean && \
-rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
-
-RUN pip install --no-cache-dir virtualenv
-RUN pip install --no-cache-dir --upgrade pip
-COPY requirements.txt ./
-RUN pip install --no-cache-dir -r requirements.txt
-
-RUN useradd -m -s /bin/bash  euler
-ENV HOME /home/euler
-RUN chown -R euler:euler /home/euler
-USER euler
-WORKDIR $HOME
-
-RUN virtualenv --python=/usr/bin/python2.7 $HOME/py27
-COPY requirements.txt /tmp/
-RUN $HOME/py27/bin/pip install --no-cache-dir -r /tmp/requirements.txt
-
-CMD /bin/bash

docker/Dockerfile-rosen

-FROM boileaum/pythran:latest
-MAINTAINER Matthieu Boileau <matthieu.boileau@math.unistra.fr>
-
-ENV HOME /home/euler
-ADD . $HOME/rosen
-USER root
-RUN chown -R euler:euler /home/euler
-WORKDIR $HOME/rosen
-USER euler
-
-RUN make clean && make
-
-CMD /bin/bash
-

docker/docker-compose.yml

-version: '2'
-
-services:
-
-  env:
-    build:
-      context: ../
-      dockerfile: docker/Dockerfile-pythran
-    image: boileaum/pythran:latest
-
-  user:
-    build:
-      context: ../
-      dockerfile: docker/Dockerfile-rosen
-    image: boileaum/rosen:latest
-    depends_on:
-      - env
-