pgsql: Revert "Add notBefore and notAfter to SSL cert info display"

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

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/697f8d266cfb33409f7ccf3319f4448477066329

Modified Files
--------------
contrib/sslinfo/Makefile | 2 +-
contrib/sslinfo/meson.build | 1 -
contrib/sslinfo/sslinfo--1.2--1.3.sql | 12 ----
contrib/sslinfo/sslinfo.c | 95 -----------------------------
contrib/sslinfo/sslinfo.control | 2 +-
doc/src/sgml/monitoring.sgml | 20 ------
doc/src/sgml/sslinfo.sgml | 30 ---------
src/backend/catalog/system_views.sql | 4 +-
src/backend/libpq/be-secure-openssl.c | 78 -----------------------
src/backend/utils/activity/backend_status.c | 2 -
src/backend/utils/adt/pgstatfuncs.c | 46 ++++++--------
src/include/catalog/catversion.h | 2 +-
src/include/catalog/pg_proc.dat | 6 +-
src/include/libpq/libpq-be.h | 2 -
src/include/utils/backend_status.h | 3 -
src/test/regress/expected/rules.out | 12 ++--
src/test/ssl/t/001_ssltests.pl | 10 +--
src/test/ssl/t/003_sslinfo.pl | 14 -----
src/tools/pgindent/typedefs.list | 1 -
19 files changed, 34 insertions(+), 308 deletions(-)