You can add following code in your theme’s (child theme’s if you are using) functions.php

add_filter( 'fep_menu_buttons', function( $menu  ){
    unset( $menu['settings'], $menu['announcements']  );
    return $menu;
}, 99);

It will remove for all users. If you want to hide for certain role you can let me know from which role you want to hide.

You can use following code instead

add_filter( 'fep_menu_buttons', function( $menu  ){
    if ( array_intersect( [ 'external-user-student', 'external-user-teacher' ], wp_get_current_user()->roles ) ){
        unset( $menu['settings'], $menu['announcements']  );
    }
    return $menu;
}, 99);