Disable most recent & view all (TABS) on nav-menu.php

You can introduce a js file exclusively for admin panel doing this in functions.php:

//Admin JS
add_action('admin_init', 'custom_admin_js');
function custom_admin_js() {
    wp_register_script( 'admin-js', get_stylesheet_directory_uri() . '/js/admin.js' );
    wp_enqueue_script( 'admin-js' );
}

And in admin.js file:

jQuery(document).ready(function($) {
    $('*[data-type="tabs-panel-posttype-page-most-recent"]').fadeOut();
    $('*[data-type="page-all"]').fadeOut();
    $('*[data-type="tabs-panel-posttype-page-search"]').trigger("click");
});