treewide: remove the-kenny from maintainers

@the-kenny did a good job in the past and is set as maintainer in many package,
however since 2017-2018 he stopped contributing. To create less confusion
in pull requests when people try to request his feedback, I removed him as
maintainer from all packages.

pkgs/games/anki/default.nix

@@ -195,6 +195,6 @@ buildPythonApplication rec {
       license = licenses.agpl3Plus;
       broken = stdenv.hostPlatform.isAarch64;
       platforms = platforms.mesaPlatforms;
-      maintainers = with maintainers; [ oxij the-kenny Profpatsch enzime ];
+      maintainers = with maintainers; [ oxij Profpatsch enzime ];
     };
 }