function plt_hide_prevent_direct_access_menus() {
//Hide the "Prevent Direct Access" menu.
remove_menu_page('wp_pda_options');
//Hide the "Prevent Direct Access → Settings" menu.
remove_submenu_page('wp_pda_options', 'wp_pda_options');
//Hide the "Prevent Direct Access → Go Pro" menu.
remove_submenu_page('wp_pda_options', 'wp_pda_gopro');
}
add_action('admin_menu', 'plt_hide_prevent_direct_access_menus', 11);