alwanrida

add_filter('woocommerce_product_variation_title', 'filter_product_variation_title_callback', 10, 4);
function filter_product_variation_title_callback($variation_title, $product, $title_base, $title_suffix) {
    $title_base = strip_tags($variation_title);
    return $title_base;
}

I fixed the Syntax Error and cleaned-up the code.