Remove umount check.

  - address Frysinger comments in pervious commit.
  - umount check will be done at mount_gpt_image.sh.

BUG=b:62703887
TEST=Manually

Change-Id: I548a54533ca55a7c47b31cb4f3df32d8f517c938
Reviewed-on: https://chromium-review.googlesource.com/544902
Commit-Ready: danny chan <[email protected]>
Tested-by: danny chan <[email protected]>
Reviewed-by: Mike Frysinger <[email protected]>
1 file changed