Removing duplicate !options case

I haven't actually tested this code, but was reading it due to a post that linked to the code here: http://dailyjs.com/2013/09/26/libuv/

As I was reading through the code, I noticed a code path that can't be reached.

I didn't strictly follow the contributing guide: https://github.com/joyent/node/wiki/Contributing, but the change seems safe.

Feel free to close this out. I'm not sure if it was just an oversight or what.