Update Dockerfile

Dockerfile

@@ -2,12 +2,6 @@ FROM golang:1.10.3
 
 ENV DEBIAN_FRONTEND=noninteractive 
 
-RUN 	go get -u github.com/golang/dep/cmd/dep \
-		&& echo deb http://deb.debian.org/debian stretch-backports main > /etc/apt/sources.list.d/backports.list \
-                && apt-get update \
-                && apt-get install -y --no-install-recommends supervisor crudini \
-                && crudini --set /etc/supervisor/supervisord.conf supervisord nodaemon true
-
-ENTRYPOINT      exec /usr/bin/supervisord -c /etc/supervisor/supervisord.conf
+RUN 	go get -u github.com/golang/dep/cmd/dep