How to uninstall and remove translated pages

Hello,

I am using this plugin on a website of mine and it works great. I recently sold the website and new owner does not want to use the plugin.

I deactivated the plugin but the language pages are still online but in english.
So mydomain.com/fr/ now shows english instead of french but ideally I don’t want mydomain.com/fr/ to exist anymore.

How do I delete all translated pages and urls please?

Regards

https://www.ads-software.com/plugins/transposh-translation-filter-for-wordpress/