Revert "Add an option to allow/disallow degenerate DICE chains"

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: Iae6ae388cba30036a76a795a510d0c85bf8b2d36
4 files changed