tree 0c31df209bc5d7d8a72c28d0be2b69f0a7db93fc
parent 047f5a7b4f528f287a2dad494b8696525b27ad80
author Jerry Zhang <zhangjerry@google.com> 1476751033 -0700
committer Jerry Zhang <zhangjerry@google.com> 1476751296 -0700

Clean up persistent usb state on boot.

b/31814300 was fixed, but mtp can still stick around in the
persistent config even after flashing. This block of code
will only run once, but will ensure that mtp is not in
the config after the update.

Bug: 31814300
Test: Manual
Change-Id: Icf02be38c9e1f769412ac963ed6afc14e6092bfb