maintainers: remove skrzyp

no github account linked

maintainers/maintainer-list.nix

···
     githubId = 266500;
     name = "Sven Keidel";
   };
-  skrzyp = {
-    email = "[e-mail]";
-    name = "Jakub Skrzypnik";
-  };
   skykanin = {
     email = "[e-mail]";
     github = "skykanin";

pkgs/applications/graphics/ahoviewer/default.nix

···
   meta = with lib; {
     homepage = "https://github.com/ahodesuka/ahoviewer";
     description = "A GTK2 image viewer, manga reader, and booru browser";
-    maintainers = with maintainers; [ skrzyp xzfc ];
+    maintainers = with maintainers; [ xzfc ];
     license = licenses.mit;
     # Unintentionally not working on Darwin:
     # https://github.com/ahodesuka/ahoviewer/issues/62