You probably have already noticed that if you install a WooCommerce plugin by WooThemes, it will ask you to install the WooThemes Updater plugin. It is needed ONLY if you purchased license keys from them and in order to receive automatic updates of these plugins.
Otherwise, it is just an annoying notification. But you can hide it if you won’t be purchasing official licenses anytime soon.
To do this, just paste the below code into your theme’s functions.php:
// Remove WooCommerce Updater
AND REMEMBER: You will need to add this code snippet again right after every update of your theme.
An Advanced way to inject the code without messing with functions.php: