Revert "Discussion repeat fix"

Reverts guardian/frontend#4943

After this deploy, JS errors shot up. Can't think why this would have caused it, but doing a revert to test

cc: @jamesgorrie 

![screen shot 2014-07-02 at 12 06 21](https://cloud.githubusercontent.com/assets/74132/3454960/00ce555c-01d9-11e4-96e0-6fd9915d8d6a.png)