Comment admin view has a dead link in admin menu if Comment module is disabled

Hi there, very small bug when admin menu and admin views are both enabled.

If the Comment module is disabled, the Comments view still tries to give itself a menu item, resulting in an empty title-less half-size menu item that points to a dead url.

The ideal way to fix would be to make the Comment view conditional on the Comment module being enabled - I don't know enough about configuring default views to make that work reliably, so here's a quick temporary fix that at least cleans up the menu for sites not using comments.

In admin_menu/admin_menu.module near line 158 (or, in a custom module calling hook_menu_alter()):

/**
 * Implements hook_menu_alter().
 */
function admin_menu_menu_alter(&$items) {
  if (!module_exists("comment") && isset($items['admin/content/comment'])) {
    unset($items['admin/content/comment']);
  }
  // Flush client-side caches whenever the menu is rebuilt.
  admin_menu_flush_caches();
}