Hide menu items in wp-admin wordpress

function remove_menu_items() {
  global $menu;
  $restricted = array(__('Links'), __('Comments'), __('Media'), __('Promotions'), __('Quote'),__('Plugins'), __('Tools'), __('Users'));
  end ($menu);
  while (prev($menu)){
    $value = explode(' ',$menu[key($menu)][0]);
    if(in_array($value[0] != NULL?$value[0]:"" , $restricted)){
      unset($menu[key($menu)]);}
    }
  }
if (!is_super_admin() )
{
add_action('admin_menu', 'remove_menu_items');
add_action('admin_menu', 'my_remove_menu_pages');
function my_remove_menu_pages() {
remove_menu_page("edit.php?post_type=flagallery");
remove_menu_page("quotes-collection");
remove_menu_page("wpcf7");


}
}