Remove cruft

builder/dockerfile.ubuntu1604.build

@@ -1,21 +0,0 @@
-FROM ubuntu:16.04
-
-RUN sed -i 's$# deb-src$deb-src$' /etc/apt/sources.list
-
-RUN apt-get update && \
-      apt-get -y install sudo
-
-RUN apt-get -y build-dep xorg-server
-RUN apt-get -y install cmake git libjpeg-dev libgnutls-dev vim wget tightvncserver
-RUN apt-get -y install libjpeg-dev libpng-dev libtiff-dev libgif-dev
-RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
-RUN cd /tmp && tar -xzvf /tmp/libwebp-*
-RUN cd /tmp/libwebp-1.0.2 && ./configure && make && make install
-
-RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo
-
-COPY --chown=docker:docker . /src/
-
-
-USER docker
-ENTRYPOINT ["/src/builder/build.sh"]