Re-work the devinstall wipe to specificlally wipe only the devinstall state.

Devinstall installs packages into /usr/local/bin which is bind mounted from
/mnt/stateful_partition/dev_image. Instead of attempting to wipe all of
/mnt/stateful_partition/* we instead just wipe
/mnt/stateful_partition/dev_image.

BUG=chromium:245393
TEST=Ran it multiple times.

Change-Id: Ide4fba063f067aefef2ae2c41cbbbed84578f330
Reviewed-on: https://gerrit.chromium.org/gerrit/60888
Tested-by: Chris Sosa <sosa@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Commit-Queue: Chris Sosa <sosa@chromium.org>
1 file changed