The plugin may be removed via the shopware plugin manager
The configured surcharges/discounts will not be removed automatically. They are kept in the following tables of the database and can be removed manually:
- mnd_add_charge
- mnd_add_charge_articles
- mnd_add_charge_variants
- mnd_add_charge_customer_group_exception
- mnd_add_charge_country
- mnd_add_charge_config