Through a bit of detective work and the use of good old Zenmate, I might have cracked the case:
This is the ad for the game as it appears of the US uplay store:
Now the French and Italian stores
All clearly reporting that the version they're selling is not censored.
Now, the German store:
The caption "non-censored version" is evidently missing, thus I assume that the German version is the only censored one. I hope the same is true for Steam as well, I don't see why it shouldn't though.
This is the entry for the game on the Steam database:
http://steamdb.info/app/213670/#section_subs
Apparently, only three versions differing from the main one are listed, for Germany, Russia and Australia. Can anyone who's more familiar with how the database works confirm that?