How can I delete Facebook contacts from my Android Contacts?

[Drake Merwin]

I have a HTC Wlidfire S, and on my Facebook I have about 300 friends. But my phone adds all my Facebook friends to my contacts, and I only want to keep the ones that have mobile numbers for, because it takes up loads of memory that I could use for apps. It won't let me delete individual ones, so how do I do this?

[Ify]

On the app it should say in the settings if you want to sync your phone click no and all the new contacts should be gone