Remove Admin Bar / ToolBar for Subscriber

/* Remove Admin Bar / ToolBar for Subscriber */
function remove_admin_bar_for_subscriber() {
    $user = wp_get_current_user();
    if ( in_array( 'subscriber', (array) $user->roles ) ) {
        show_admin_bar( false );
    }
}

add_action('after_setup_theme', 'remove_admin_bar_for_subscriber');