ref(Dockerfile): remove WORKFLOW_RELEASE envvar (#845)

Matthew Fisher · web-flow · commit c65c50831047 · 2016-06-30T10:46:20.000-07:00
This is no longer necessary.
diff --git a/rootfs/Dockerfile b/rootfs/Dockerfile
@@ -30,5 +30,3 @@ COPY . /app
 WORKDIR /app
 CMD ["/app/bin/boot"]
 EXPOSE 8000
-
-ENV WORKFLOW_RELEASE 2.1.0
