Revert "Optionally (dis)allow degenerate DICE chains in verifyCsr"

Revert submission 3254876-disallow_degenerate_chains

Reason for revert: Droidmonitor created revert due to b/365592588.

Reverted changes: /q/submissionid:3254876-disallow_degenerate_chains

Change-Id: I31f78d6c708f34f0a6fe9f54daef82981a91ac8f
3 files changed