Revert "Add notBefore and notAfter to SSL cert info display"
This reverts commit
6acb0a628eccab8764e0306582c2b7e2a1441b9b since
LibreSSL didn't support ASN1_TIME_diff until OpenBSD 7.1, leaving
the older OpenBSD animals in the buildfarm complaining.
Per plover in the buildfarm.
Discussion: https://postgr.es/m/
F0DF7102-192D-4C21-96AE-
9A01AE153AD1@yesql.se