.tutor-dashboard-sidebar .tutor-dashboard-sidebar-nav ul li:nth-of-type(5):not(:last-of-type):after {
    content: "";
    border-bottom: none;
    margin-top: 0;
    margin-bottom: 0;
    width: calc(100% - 48px);
    display: block;
}
ul.tutor-dashboard-header-user-popover-menu li:nth-child(4) { display: none !important; }