How to remove a user defined language in Notepad++

I haven't an English version of Notepad++ but I hope you'll understand:

1. Select Menu "Language"
2. "Define language"
3. Select the language you want to remove from the drop-down box
4. Click on "Delete"

Here is animated GIF that shows how to remove User Defined Language in Notepad++. (Version 7.5.9)