Remove Default message bar

Howdy!

You can use the following line of code:

add_filter( 'wc_add_to_cart_message_html', '__return_empty_string' );

This line code should be added to your child theme’s functions.php file or via a plugin that allows custom functions to be added, such as Code Snippets. Please don’t add custom code directly to your parent theme’s functions.php file as this will be wiped entirely when you update.

Cheers!