Remove all blimp engine code

blimp/engine/Dockerfile

Index: blimp/engine/Dockerfile
diff --git a/blimp/engine/Dockerfile b/blimp/engine/Dockerfile
deleted file mode 100644
index a65598d0bd4660e5070870ab5c43f8117417f891..0000000000000000000000000000000000000000
--- a/blimp/engine/Dockerfile
+++ /dev/null
@@ -1,21 +0,0 @@
-FROM base:latest
-
-RUN mkdir /tmp/engine
-
-RUN useradd -ms /bin/bash blimp_user
-
-# Permission is not set correctly on directories automatically created by
-# Docker ADD/COPY (see bug https://github.com/docker/docker/issues/7511 and
-# https://github.com/docker/docker/issues/1295). So working around this issue
-# by adding the files to tmp directory and then moving it to right location.
-ADD * /tmp/engine/
-RUN mv /tmp/engine/chrome_sandbox /tmp/engine/chrome-sandbox && \
-    mv /tmp/engine/third_party/blimp_fonts /tmp/engine/fonts && \
-    cp -r /tmp/engine /engine && \
-    chown -R blimp_user /engine && \
-    rm -rf /tmp/engine
-
-USER blimp_user
-WORKDIR "/engine"
-
-ENTRYPOINT ["/engine/start_engine.sh"]