Remove dead code in pgcrypto

When Who What
2022-09-14 20:01:42 Daniel Gustafsson (d_gustafsson) Closed in commitfest 2022-09 with status: Committed
2022-08-30 13:32:19 Aleksander Alekseev (a.alekseev) New status: Ready for Committer
2022-08-30 13:02:00 Aleksander Alekseev (a.alekseev) Added a.alekseev as reviewer
2022-08-30 12:54:22 Daniel Gustafsson (d_gustafsson) Changed authors to Daniel Gustafsson (d_gustafsson)
2022-08-30 12:54:22 Daniel Gustafsson (d_gustafsson) Changed committer to d_gustafsson
2022-08-30 12:53:35 Daniel Gustafsson (d_gustafsson) Attached mail thread FCF3F14E-17D5-41F2-AC58-0A97B341193A@yesql.se
2022-08-30 12:53:34 Daniel Gustafsson (d_gustafsson) Created patch record