Revert internationalization

I’d like to remove the implementation of a multi-language site and fall back to the english content as a default. Is this somehow easily possible?

changing 'languages' => false inside the config file doesn’t do it, removing the site/languages folder results in an empty page in the frontend… I guess I’d have to remove the different filenames for i.e site.en.txt and site.de.txt to revert everything to its original state, but is there a way to automate this for all existing content?

commenting out the content of site/languages/de.php while still keping site/languages/en.php as the default language, as well as 'languages' => false in config seems to have done it.

New content is still being created with a template.en.txt file instead of template.txt but Kirby seems to be doing well with using this as a default.