treewide: remove worldofpeace from meta.maintainers

(It was requested by them.)
I left one case due to fetching from their personal repo:
pkgs/desktops/pantheon/desktop/extra-elementary-contracts/default.nix

pkgs/desktops/gnome-3/extensions/mpris-indicator-button/default.nix

@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "A simple MPRIS indicator button for GNOME Shell";
     license = licenses.gpl3;
-    maintainers = with maintainers; [ worldofpeace ];
+    maintainers = with maintainers; [ ];
     platforms = gnome3.gnome-shell.meta.platforms;
     homepage = "https://github.com/JasonLG1979/gnome-shell-extension-mpris-indicator-button";
     broken = versionOlder gnome3.gnome-shell.version "3.34";

pkgs/desktops/gnome-3/misc/pomodoro/default.nix

@@ -66,7 +66,7 @@ stdenv.mkDerivation rec {
       This GNOME utility helps to manage time according to Pomodoro Technique.
       It intends to improve productivity and focus by taking short breaks.
     '';
-    maintainers = with maintainers; [ worldofpeace ];
+    maintainers = with maintainers; [ ];
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };

pkgs/desktops/pantheon/default.nix

@@ -23,7 +23,7 @@ lib.makeScope pkgs.newScope (self: with self; {
     wingpanel-indicator-session wingpanel-indicator-sound
   ];
 
-  maintainers = with pkgs.lib.maintainers; [ worldofpeace ];
+  maintainers = with pkgs.lib.maintainers; [ ];
 
   mutter = pkgs.gnome3.mutter334;