cccc: mark for removal (gcc-15 build failure)

Fails to build on `master` as https://hydra.nixos.org/build/319888132.

As upstream did not update since 2006 let's mark
it broken for removal.

pkgs/by-name/cc/cccc/package.nix

@@ -39,6 +39,8 @@ stdenv.mkDerivation rec {
     platforms = lib.platforms.unix;
     maintainers = [ ];
     # The last successful Darwin Hydra build was in 2023
-    broken = stdenv.hostPlatform.isDarwin;
+    # On linux fails to build on gcc-15, needs porting to c23, but
+    # the upstream code did not update since 2006.
+    broken = true;
   };
 }