Remove obsolete download all deps

With Bazel build the script to download all dependencies
has been discontinued.

Change-Id: I68e777db57ed9439954928891ac970302c54c6d9
diff --git a/jenkins-docker/slave-bazel/Dockerfile b/jenkins-docker/slave-bazel/Dockerfile
index a1eb952..6f0706f 100644
--- a/jenkins-docker/slave-bazel/Dockerfile
+++ b/jenkins-docker/slave-bazel/Dockerfile
@@ -23,7 +23,6 @@
 RUN bash -c '. /usr/bin/set-java.sh 8 && \
     cd /tmp &&  git clone --recursive https://gerrit.googlesource.com/gerrit && \
     cd /tmp/gerrit && ( bazel build release || true ) && \
-    cd /tmp/gerrit && ( ./tools/download_all.py || true ) && \
     cd /tmp/gerrit && ./tools/setup_gjf.sh && \
     cd /tmp/gerrit && mv tools/format ~ && \
     cd /tmp/gerrit && ./tools/download_file.py -o ~/format/google-java-format-1.3-all-deps.jar -u https://github.com/davido/google-java-format/releases/download/1.3-1-gec5ce10/google-java-format-1.3-1-gec5ce10-all-deps.jar -v "65f060dc238bdd81ef029354d8e6dad6dd742ef4" && \