Revert "vboot: Add vb2api_is_oem_lock_enabled function"

This reverts commit 6536877b04021b0de9624e29da6ef3ebf05e61da.

Revert reason: API not needed anymore with new fastboot locking.

BRANCH=None
BUG=b:484260435
TEST=make runtests # In CrOS-SDK

Change-Id: I51bbbced4ee5e040ba8f2a7c4a087d1f196981e6
Signed-off-by: Jakub Czapiga <czapiga@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/7720625
Reviewed-by: Tomasz Michalec <tmichalec@google.com>
2 files changed