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/dwarf-fortress/dwarf-therapist/default.nix

@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Tool to manage dwarves in a running game of Dwarf Fortress";
-    maintainers = with maintainers; [ the-kenny abbradar bendlas numinit jonringer ];
+    maintainers = with maintainers; [ abbradar bendlas numinit jonringer ];
     license = licenses.mit;
     platforms = platforms.unix;
     homepage = "https://github.com/Dwarf-Therapist/Dwarf-Therapist";

pkgs/games/dwarf-fortress/game.nix

@@ -96,6 +96,6 @@ stdenv.mkDerivation {
     inherit homepage;
     license = licenses.unfreeRedistributable;
     platforms = attrNames platforms;
-    maintainers = with maintainers; [ a1russell robbinch roconnor the-kenny abbradar numinit shazow ];
+    maintainers = with maintainers; [ a1russell robbinch roconnor abbradar numinit shazow ];
   };
 }