am ce07d1e8: am 45583d71: am f26ef9f9: am 50256449: am 9cd5caec: am 8c9ea691: Revert "Add API to check certificate chain signatures"

* commit 'ce07d1e8436d22dca6cf8a375f636680e3aca472':
  Revert "Add API to check certificate chain signatures"