Remove myself (fuuzetsu) from maintainer lists

I haven't been doing any maintenance for a long time now and not only
do I get notified, it also creates a fake impression that all these
packages had at least one maintainer when in practice they had none.

pkgs/development/libraries/agda/agda-prelude/default.nix

@@ -18,6 +18,6 @@ agda.mkDerivation (self: rec {
     description = "Programming library for Agda";
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.unix;
-    maintainers = with maintainers; [ fuuzetsu mudri ];
+    maintainers = with maintainers; [ mudri ];
   };
 })