Cleaning Up Purchased List in iTunes

1. Go to iTunes, click "iTunes Store". 
2. At the top click "App Store", and once it loads, scrol all the way down to the bottom where there are a bunch of links. 
3. Click "Purchased" under "Features". 
4. Once the Purchased page comes up, Click "Apps". 
5. Then find the apps that you want to hide, and put your cursor over the icon and an X will show up at the top left... CLICK. 

  Thanks to Apple and Yosef