Removes out-of-date comment in language definition file

They all work correctly on lightshow (the last one is not valid ruby)

It was very misleading

Eg, it all works correctly: 

![[screen shot 2014-12-15 at 10 23 02 pm][1])](https://cloud.githubusercontent.com/assets/129149/5448592/f34aa0d6-84a8-11e4-9eb7-b23ceecb7b81.png))

And the last one is a syntax error:
![screen shot 2014-12-15 at 10 20 36 pm](https://cloud.githubusercontent.com/assets/129149/5448593/f92d1e20-84a8-11e4-8b79-0ef1d209c7e7.png)

[lightshow](https://lightshow.githubapp.com/?utf8=%E2%9C%93&scope=source.ruby&grammar_url=&grammar_text=&code_source=from-text&code_url=&code=%22p+%3C%3Cend%0D%0Aprint+me%21%0D%0Aend%22%0D%0A%0D%0Aprint+%3C%3C-%27THERE%27+%0D%0AThis+is+single+quoted.+%0D%0AThe+above+used+%23%7BTime.now%7D+%0D%0ATHERE+%0D%0A%0D%0A%22a%5C332a%22%0D%0A%0D%0Aval%3F%28a%29%3Ap%28b%29%0D%0Aval%3F%27a%27%3A%27b%27)