gnupg22: drop

`gnupg22` is end-of-life since 2024-12-31, see https://www.gnupg.org/download/index.html#end-of-life

Author: LeSuisse

pkgs/tools/security/gnupg/22-allow-import-of-previously-known-keys-even-without-UI.patch

@@ -456,6 +456,7 @@ mapAliases {
   gmtp = throw "'gmtp' has been removed due to lack of maintenance upstream. Consider using 'gnome-music' instead"; # Added 2024-09-14
   gnome-latex = throw "'gnome-latex' has been superseded by 'enter-tex'"; # Added 2024-09-18
   gnu-cobol = gnucobol; # Added 2024-09-17
+  gnupg22 = throw "'gnupg22' is end-of-life. Consider using 'gnupg24' instead"; # Added 2025-01-05
   gogs = throw ''
     Gogs development has stalled. Also, it has several unpatched, critical vulnerabilities that
     weren't addressed within a year: https://github.com/gogs/gogs/issues/7777

pkgs/tools/security/gnupg/22.nix

@@ -3483,11 +3483,6 @@ with pkgs;
   gnupg1compat = callPackage ../tools/security/gnupg/1compat.nix { };
   gnupg1 = gnupg1compat;    # use config.packageOverrides if you prefer original gnupg1
 
-  gnupg22 = callPackage ../tools/security/gnupg/22.nix {
-    pinentry = if stdenv.hostPlatform.isDarwin then pinentry_mac else pinentry-gtk2;
-    libgcrypt = libgcrypt_1_8;
-  };
-
   gnupg24 = callPackage ../tools/security/gnupg/24.nix {
     pinentry = if stdenv.hostPlatform.isDarwin then pinentry_mac else pinentry-gtk2;
   };