Revert "keygeneration: add ability to generate GSC RW signing key pairs"

This reverts commit 2981c0bacbaa0446562aaa04f23e3e9f07c86069, as that
patch is not the proper way to generate accessory keys.

BUG=b:221423468
BRANCH=none
TEST=none

Change-Id: I5500424b01ef45cc353468173f60f9b202b92b54
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3600150
Reviewed-by: Mike Frysinger <vapier@chromium.org>
2 files changed