cedille: remove broken package

cedille has been marked broken since NixOS 24.05 and remains unfixed.
Per RFC 180, packages broken for a full release cycle are subject
to removal.

Also removes the dependent emacs cedille-mode package.

NixOS/rfcs#180

Author: Mic92

pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix

@@ -47,9 +47,6 @@ lib.packagesFromDirectoryRecursive {
 
   zstd = callPackage ./manual-packages/zstd { inherit (pkgs) zstd; };
 
-  # From old emacsPackages (pre emacsPackagesNg)
-  cedille = callPackage ./manual-packages/cedille { inherit (pkgs) cedille; };
-
   # camelCase aliases for some of the kebab-case expressions above
   colorThemeSolarized = self.color-theme-solarized;
   emacsSessionManagement = self.session-management-for-emacs;

pkgs/applications/editors/emacs/elisp-packages/manual-packages/cedille/default.nix

@@ -414,6 +414,7 @@ mapAliases {
   catch = throw "catch has been removed. Please upgrade to catch2 or catch2_3"; # Added 2025-08-21
   catnip-gtk4 = throw "'catnip-gtk4' has been removed, as it has been unmaintained upstream since June 2023, use cavasik or cavalier instead"; # Added 2026-01-01
   cdwe = throw "'cdwe' has been removed, as it has been unmaintained upstream since June 2023"; # Added 2026-01-01
+  cedille = throw "'cedille' has been removed due to being broken for more than a year; see RFC 180"; # Added 2026-02-05
   cereal_1_3_0 = throw "cereal_1_3_0 has been removed as it was unused; use cereal intsead"; # Added 2025-09-12
   cereal_1_3_2 = throw "cereal_1_3_2 is now the only version and has been renamed to cereal"; # Added 2025-09-12
   certmgr-selfsigned = throw "'certmgr-selfsigned' has been renamed to/replaced by 'certmgr'"; # Converted to throw 2025-10-27

pkgs/applications/science/logic/cedille/Fix-to-string.agda-to-compile-with-Agda-2.6.1.patch

@@ -1626,15 +1626,6 @@ with pkgs;
       '';
     });
 
-  cedille = callPackage ../applications/science/logic/cedille {
-    inherit (haskellPackages)
-      alex
-      happy
-      Agda
-      ghcWithPackages
-      ;
-  };
-
   clevercsv = with python3Packages; toPythonApplication clevercsv;
 
   cleanit = with python3Packages; toPythonApplication cleanit;