Unmaintain packages I don't use anymore

Just got a reminder via the vulnerability roundup[1] that I'm still
listed as maintainer for Synergy, even though I stopped using it years
ago.

I'll also take this as an opportunity to remove myself from other
packages which I stopped using and thus most certainly won't be able to
maintain. The latter is already hard enough these days for software
which I *do* use.

[1]: https://github.com/NixOS/nixpkgs/issues/94007

Signed-off-by: aszlig <aszlig@nix.build>

pkgs/development/tools/analysis/eresi/default.nix

@@ -61,7 +61,6 @@ stdenv.mkDerivation rec {
     description = "The ERESI Reverse Engineering Software Interface";
     license = lib.licenses.gpl2;
     homepage = "http://www.eresi-project.org/";
-    maintainers = [ lib.maintainers.aszlig ];
     platforms = lib.platforms.linux;
   };
 }