socialbase-1.1.0/assets/js/navbar-main-menu.min.js

(function ($) {
  Drupal.behaviors.navbarMainMenu = {
    attach: function attach(context, settings) {
      $('.menu-main > .main > .expanded > .dropdown-menu > .expanded > a').removeAttr('data-toggle').removeClass('dropdown-toggle');
    }
  };
})(jQuery);