A more complete implementation of the X509_V_FLAG_NO_CHECK_TIME flag was added to OpenSSL 1.1 as commit d35ff2c0a. Drop our own version and use a backport of what was committed upstream. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Qin Long <qin.long@intel.com> Tested-by: Qin Long <qin.long@intel.com>