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

nixos/modules/services/desktops/bamf.nix

@@ -6,7 +6,7 @@ with lib;
 
 {
   meta = {
-    maintainers = with maintainers; [ worldofpeace ];
+    maintainers = with maintainers; [ ];
   };
 
   ###### interface

nixos/modules/services/desktops/geoclue2.nix

@@ -266,5 +266,5 @@ in
       } // mapAttrs' appConfigToINICompatible cfg.appConfig);
   };
 
-  meta.maintainers = with lib.maintainers; [ worldofpeace ];
+  meta.maintainers = with lib.maintainers; [ ];
 }

nixos/modules/services/desktops/tumbler.nix

@@ -19,7 +19,7 @@ in
   ];
 
   meta = {
-    maintainers = with maintainers; [ worldofpeace ];
+    maintainers = with maintainers; [ ];
   };
 
   ###### interface

nixos/modules/services/desktops/zeitgeist.nix

@@ -7,7 +7,7 @@ with lib;
 {
 
   meta = {
-    maintainers = with maintainers; [ worldofpeace ];
+    maintainers = with maintainers; [ ];
   };
 
   ###### interface