sgrep: drop

Fails to build with gcc 14 and unmaintained upstream since 1998 [1].

[1] https://www.cs.helsinki.fi/u/jjaakkol/sgrep.html

Author: LordGrimmauld

pkgs/by-name/sg/sgrep/package.nix

@@ -1687,6 +1687,7 @@ mapAliases {
   session-desktop-appimage = session-desktop;
   sequoia = sequoia-sq; # Added 2023-06-26
   sexp = sexpp; # Added 2023-07-03
+  sgrep = throw "'sgrep' has been removed as it was unmaintained upstream since 1998 and broken with gcc 14"; # Added 2025-05-17
   shallot = throw "'shallot' has been removed as it is broken and the upstream repository was removed. Consider using 'mkp224o'"; # Added 2025-03-16
   inherit (libsForQt5.mauiPackages) shelf; # added 2022-05-17
   shell-hist = throw "'shell-hist' has been removed due to lack of upstream maintenance"; # Added 2025-01-25