The source project of this merge request has been removed.
file: don’t thumbnail internally when scaling up
When requesting the thumbnail icon of a file, if the requested size is more than 25% larger than what the gnome-desktop thumbnail factory gives us, the code tries to thumbnail the file using GdkPixbuf to avoid possible quality degradation.
After 860f748a, that code path should never be executed (but is, because of a missing change to the logic) and is safe to remove.