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/development/libraries/gsignond/plugins/lastfm.nix

@@ -32,7 +32,7 @@ stdenv.mkDerivation {
     description = "Plugin for the Accounts-SSO gSignOn daemon that handles Last.FM credentials";
     homepage = "https://gitlab.com/accounts-sso/gsignond-plugin-lastfm";
     license = licenses.lgpl21Plus;
-    maintainers = with maintainers; [ worldofpeace ];
+    maintainers = with maintainers; [ ];
     platforms = platforms.linux;
   };
 }

pkgs/development/libraries/gsignond/plugins/mail.nix

@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
     description = "Plugin for the Accounts-SSO gSignOn daemon that handles E-Mail credentials";
     homepage = "https://gitlab.com/accounts-sso/gsignond-plugin-mail";
     license = licenses.lgpl21Plus;
-    maintainers = with maintainers; [ worldofpeace ];
+    maintainers = with maintainers; [ ];
     platforms = platforms.linux;
   };
 }

pkgs/development/libraries/gsignond/plugins/oauth.nix

@@ -42,7 +42,7 @@ stdenv.mkDerivation {
     description = "Plugin for the Accounts-SSO gSignOn daemon that handles the OAuth 1.0 and 2.0 authentication protocols";
     homepage = "https://gitlab.com/accounts-sso/gsignond-plugin-oa";
     license = licenses.lgpl21Plus;
-    maintainers = with maintainers; [ worldofpeace ];
+    maintainers = with maintainers; [ ];
     platforms = platforms.linux;
   };
 }

pkgs/development/libraries/gsignond/plugins/sasl.nix

@@ -39,7 +39,7 @@ stdenv.mkDerivation {
     description = "Plugin for the Accounts-SSO gSignOn daemon that handles the SASL authentication protocol";
     homepage = "https://gitlab.com/accounts-sso/gsignond-plugin-sasl";
     license = licenses.lgpl21Plus;
-    maintainers = with maintainers; [ worldofpeace ];
+    maintainers = with maintainers; [ ];
     platforms = platforms.linux;
   };
 }