I’m trying to define just two languages for my neos site (Neos-Version: 2.3.7). For now I read the documentation and tried the following code in my site package:
./flow node:migrate 20150716212459
but it has no effect on the site. Still got all the languages in the backend menu and the default language in the frontend is english. Got the migration command from the Neos documentation.
You can see the site under the following link: www.adullam2013.de maybe this helps.
Is it possible that you still have the Neos.Demo package installed? Even if the package is not the one your currenet site is based the configuration will still be evaluated.