Linux and Mac versions removed

Hello guys.

I decided to remove Linux and Mac versions of the game. Initially I thought that I only have to switch the platform in Unity and it will handle everything. But apparently people have problems running the game on those systems. And I don't have any of them, so I can't even test it myself.

From now on it will be only Windows and Android. Sorry if you wanted to play on Linux or Mac. Perhaps after the full release I will spend time to properly port the game, but now I simply cannot justify the required effort to do so.