Can I bypass some code in this plugin?

I really need to be able to display custom woocommerce taxonomy in this widget and I figured out that I can indeed do that, but I need to remove some lines of code, namely these:

if ( array_key_exists( ‘nav_menu’, $taxonomies ) ) {
unset( $taxonomies[ ‘nav_menu’ ] );
}

if ( array_key_exists( ‘post_format’, $taxonomies ) ) {
unset( $taxonomies[ ‘post_format’ ] );
}

Is there a way to do this with a custom function or override without hacking your widget plugin?

thanks!