Remove Support Nag W3 Total Cache

disable-w3-total-cache-nags.php

<?php
/*
    Plugin Name: Disable W3 Total Cache Nags
    Version: 1.0
    Author: Blue Liquid Designs
*/

add_action( 'wp_loaded', 'bld_disable_w3_total_cache_nags' );

function bld_disable_w3_total_cache_nags() 
{
	if(function_exists('is_w3tc_admin_page'))
	{
		if (is_w3tc_admin_page()) {

	    	$notifications = w3_instance('W3_Plugin_NotificationsAdmin');

	    	remove_action('w3tc-dashboard-head', array($notifications, 'support_us_nag') );
	    	remove_action('w3tc-dashboard-head', array($notifications, 'edge_nag') );
	    }
	}
}

I quite enjoy all the options WordPress plugin W3 Total Cache give you, but I was sick of the support nag loading on every admin page (it was unbearable).

This little code snippet will disable that functionality without modifying the core plugin. Either install it as a plugin or drop it in your theme's functions.php file.