Minetest mod manager: correct icon license and remove antifeature
Minetest mod manager: correct icon license and remove antifeature

The minetest icon is in fact licensed under CC-BY-SA 3.0 [1].
This means that the modified logo must be licensed under that license
as well.

This means that the antifeature can be removed.

See also the upstream commit [2].

[1]: https://forum.minetest.net/viewtopic.php?p=63922#p63922
[2]: https://github.com/rubenwardy/mtmods4android/commit/45987b974869ab945c9f22d5e317bae9e8c0662b

f-droid/fdroiddata,f-droid/fdroiddata,f-droid/fdroid-data