To unset "{item_name} removed. Undo?
" notice on cart page, you can trick Woocommerce with the following:
add_action( 'template_redirect', 'null_removed_cart_item_message' );
function null_removed_cart_item_message() {
// Only on cart page
if( ! is_cart() ) return;
// Get the WC notices array stored in WC_Session
$wc_notices = (array) WC()->session->get( 'wc_notices' );
$found = false; // Initializing
// Check that we have at least one "success" notice type
if( isset($wc_notices['success']) && sizeof($wc_notices['success']) ) {
// Loop through "success" notices type
foreach( $wc_notices['success'] as $key => $wc_notice ) {
// Remove notices that contain the word "removed" from the array
if ( strpos($wc_notice, 'removed') !== false ) {
unset($wc_notices['success']);
$found = true;
}
}
}
if( $found ) {
// Set back the notices array to WC_Session
WC()->session->set( 'wc_notices', $wc_notices );
}
}
Code goes in function.php file of your active child theme (or active theme). Tested and works.
Important: Depending on your installation language, you could need to change the word "removed" in the function code to the one that is convenient in your installation language.