Revert "Implement flash region permissions check in hardware sequencing." This reverts commit 0b50cc2922f1717663ecb814d1c55489ffa91632. BUG=chromium:524262 BRANCH=R46 Change-Id: I902015d46d3f4747b35d75347120dbc771d1280f Reviewed-on: https://chromium-review.googlesource.com/295846 Reviewed-by: Aaron Durbin <[email protected]> Tested-by: David Hendricks <[email protected]> Commit-Queue: Bernie Thompson <[email protected]>