If you use OpenJDK you can remove whatever the hell you want! 
Mind you, I’m with kappa and princec in that it’s probably not worth the effort.
I’m not so much interested in the hardware, even less the controller. I’m not that sort of gamer. But SteamOS, a Linux which is optimized to run games is good news to me. I have made quite bad experiences configuring Linux for good 3D accelleration, and a Linux which comes with good 3D api support is very welcome to me.
One of the best IT related quotes I saw lately. Currently even gigabytes can be downloaded very fast and stored easily, so both bandwidth and storage space will (probably) never be a problem or something to worry anymore.
I took a first look at SteamOS - I must say that it is much better than I expected, but it still needs much polish.