Updater won't remove Foris or Luci plugins because of language packages
There is a bug with new code introduced in 1e07e9d4 and 9656c3d8. The problem is that it installs translation packages if package is installed but if request to install that package is no longer present it won't remove it nor translation package. That is because it is already installed. Mentioned code results to languages and in proxy installed package is required. That means it is never removed.
The correct behavior should be that if request to that package is dropped then it is removed and languages are removed as well.
This leads to some weak dependencies but we do not have anything like that in updater so we should think about how to do it with what we have in updater.