crossystem: Remove the stale TPM simulator support

We don't need the MOUNT_ENCRYPTED_KEY_PATH after we replaced the stale
TPM simulator with the driver-level TPM simulator.
It's time to remove it.

BUG=b:203195852, b:174807059
BRANCH=none
TEST=crossystem clear_tpm_owner_request=1

Signed-off-by: Yi Chou <yich@google.com>
Change-Id: I7c1c9c16697b1bbda9adea13448fdb9cffd9cc7b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3358669
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Leo Lai <cylai@google.com>
2 files changed