Remove "life" and other components

[chrislloyd]

We (@toolmantim & I) decided not to create a leaderboard for the game. There are positive and negatives to this but ultimately I want the game to be open-ended, for people to create their own goals. For instance, living the longest isn't necessarily desirable when the supply of robots is unlimited.

[chrislloyd]

Fixed in b0eb9f2.