tree ef37f67e3a958d169a988eb3d4358f32a4d6884a
parent ad474ec5e5013ecb8cfe04b13ae329839f894a82
author David James <davidjames@chromium.org> 1364751235 -0700
committer David James <davidjames@chromium.org> 1365805714 -0700

Clean out old build products from the checkout.

This helps ensure we don't have really old *.pyc files kicking around,
which can cause trouble for Python upgrades.

Example error this should fix:
  ImportError: Bad magic number in .../chromite/scripts/lddtree.pyc

BUG=chromium:206038
TEST=cbuildbot run

Change-Id: I14af7b7a071686e72dd44059429afddeafe0ccd4
Previous-Reviewed-on: https://gerrit.chromium.org/gerrit/46993
(cherry picked from commit 86501df1c2fea8369e570dfb05103fb8156fe7be)
Reviewed-on: https://gerrit.chromium.org/gerrit/48043
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: David James <davidjames@chromium.org>