Update Dockerfile

Dockerfile

@@ -71,13 +71,6 @@ USER root
 
 # User Debian packages
 ## Security warning : Potential user code executed as root (build time)
-RUN --mount=target=/root/packages.txt,source=packages.txt \
-    apt-get update && \
-    xargs -r -a /root/packages.txt apt-get install -y --no-install-recommends \
-    && rm -rf /var/lib/apt/lists/*
-
-RUN --mount=target=/root/on_startup.sh,source=on_startup.sh,readwrite \
-	bash /root/on_startup.sh
 
 RUN mkdir /data && chown user:user /data
 RUN pip install bottle