remove dockerfile as we use custom image

molecule/default/Dockerfile.j2

-{% if item.registry is defined %}
-FROM {{ item.registry.url }}/{{ item.image }}
-{% else %}
-FROM {{ item.image }}
-{% endif %}
-
-ENV container docker
-
-RUN pacman -Syu --noconfirm
-RUN pacman -S systemd python --noconfirm
-#RUN systemctl set-default multi-user.target
-
-VOLUME [ "/sys/fs/cgroup", "/run", "/run/lock", "/tmp" ]
-
-# STOPSIGNAL SIGRTMIN+3
-
-
-# ENTRYPOINT ["/usr/lib/systemd/systemd", "--log-level=info", "--unit=sysinit.target"]
-# CMD ["/sbin/init"]
-CMD ["/usr/lib/systemd/systemd", "--log-level=info", "--unit=sysinit.target"]
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