Utils: Remove unused function

src/utils.js

@@ -253,18 +253,6 @@ function isAccelValid({ mask, keyval }) {
     return Gtk.accelerator_valid(keyval, mask) || (keyval === Gdk.KEY_Tab && mask !== 0);
 }
 
-/**
- * Find the position of a menu item in the Shell aggregate menu.
- *
- * @param {*} menuItem The desired menu item.
- * @returns {number} The position of the menu item, `-1` if not found.
- */
-function findShellAggregateMenuItemPosition(menuItem) {
-    const menu = imports.ui.main.panel.statusArea.aggregateMenu.menu;
-    const items = menu._getMenuItems();
-    return items.indexOf(menuItem);
-}
-
 /**
  * Find an item in a `Gio.ListModel`.
  *