remove single profile group tabs from edit profile page, fixes #205

Just a little cleanup of an unnecessary button. I hope I put this function in the right place. 

Before: 
![screen shot 2014-06-16 at 10 06 02 am](https://cloud.githubusercontent.com/assets/1843676/3288203/d83f5444-f560-11e3-8cc7-fa608cb8f10d.png)
After: 
![screen shot 2014-06-16 at 10 09 16 am](https://cloud.githubusercontent.com/assets/1843676/3288209/de2f110a-f560-11e3-861e-0701648e8dd1.png)