Add the following snippet in your theme's functions.php OR in a mu-plugin e.g. wp-content/mu-plugins/my-site-util.php

If the wp-content/mu-plugins/ folder doesn't not exist, create it.

add_action('admin_init', 'orbisius_sandbox_admin_init');

/**
 * Admin init stuff
 */
function orbisius_sandbox_admin_init() {
   /**
    * This removes the annoying thing that stops you in the admin area to give you a hint.
    * @see trunk/wp-admin/includes/template.php
    */
   remove_action( 'admin_enqueue_scripts', array('WP_Internal_Pointers', 'enqueue_scripts' )  );
}

If you are going to put the code in a mu-plugin make sure you insert <?php before the snippet. Due to formatting issues in the article I omitted it.

 

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