Don't run bazel version during setup.

Summary: Since we're using `--output_user_root=/tmp/somewhere`, this content is discarded after setup anyway (not preserved in a snaphot)

Reviewers: naphat, kylec

Reviewed By: kylec

Subscribers: changesbot, wwu

Differential Revision: https://tails.corp.dropbox.com/D233195

changes/utils/bazel_setup.py

@@ -3,8 +3,6 @@
 # Assume that apt sources have been set up correctly up front, and `apt-get update` run already.
 BASH_BAZEL_SETUP = """#!/bin/bash -eux
 sudo apt-get install -y --force-yes {bazel_apt_pkgs}
-
-/usr/bin/bazel --nomaster_blazerc --blazerc=/dev/null --output_user_root={bazel_root} --batch version
 """.strip()
 
 # We run setup again because changes does not run setup before collecting tests, but we need bazel

tests/changes/models/test_job.py

@@ -60,8 +60,6 @@ def test_autogenerated_commands(self, get_config):
 
         bazel_setup_expected = """#!/bin/bash -eux
 sudo apt-get install -y --force-yes bazel
-
-/usr/bin/bazel --nomaster_blazerc --blazerc=/dev/null --output_user_root=/bazel/root/path --batch version
 """.strip()
 
         sync_encap_expected = """