Hide purchased items in iTunes on iOS devices
How to hide purchased items on your iPad, iPhone or iPod
Here's how you can hide purchased items on your iOS devices.
1. Go to the Purchased section of iTunes on your iOS device.
2. Find the item you want to hide.
3. Swipe across the item to see the Hide button.
4. Tap the Hide button to hide the item.
For more, see the original article at the link below.
iTunes: Hiding Purchased Items | Mac Observer