Disable Tags WordPress

disable_tags_WP.php

<?php
// Disable Tags Dashboard WP
add_action('admin_menu', 'my_remove_sub_menus');

function my_remove_sub_menus() {
    remove_submenu_page('edit.php', 'edit-tags.php?taxonomy=post_tag');
}
// Remove tags support from posts
function myprefix_unregister_tags() {
    unregister_taxonomy_for_object_type('post_tag', 'post');
}
add_action('init', 'myprefix_unregister_tags');
?>