autopep8: drop unused package

BUG=b:187789240
TEST=CQ passes

Change-Id: I161e723e637cf4e805de22f71be68e70a3d2c848
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/4289389
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
3 files changed