tk: remove vrthra and lovek323 from meta.maintainers [all orphans]

Tracking issue: NixOS#290642

Inactive since at least 2017 and 2022 respectively.

pkgs/development/libraries/tk/generic.nix

@@ -69,6 +69,6 @@ tcl.mkTclDerivation {
     homepage = "https://www.tcl.tk/";
     license = licenses.tcltk;
     platforms = platforms.all;
-    maintainers = with maintainers; [ lovek323 vrthra ];
+    maintainers = with maintainers; [ ];
   };
 }