am 4bbd5d45: am ce07d1e8: am 45583d71: am f26ef9f9: am 50256449: am 9cd5caec: am 8c9ea691: Revert "Add API to check certificate chain signatures"

* commit '4bbd5d45bffa91f41136709ed6ce45c56192711c':
  Revert "Add API to check certificate chain signatures"