To uninstall apertium-fr-es just follow these instructions.
/debian/stretch/main///install/index.html Apertium translation data for the French-Spanish pair Debian 9.0 misc 0.9.2~r61322-2
sudo apt-get remove apertium-fr-es
Which will remove just the apertium-fr-es package itself.
sudo apt-get remove --auto-remove apertium-fr-es
This will remove the apertium-fr-es package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for apertium-fr-es then this will work.
sudo apt-get purge apertium-fr-es
Or similarly, like this apertium-fr-es
sudo apt-get purge --auto-remove apertium-fr-es
|Maintainer||Debian Science Team
|Description||Apertium translation data for the French-Spanish pair|