I'm planning on deleting my ex-friend.
How do you plan on deleting them?
By deleting his contact from my phone.
If that person is not your friend anymore then it makes sense to delete them from your contact list. Even if you are doing this to not think about them then you are also controlling your mind in a positive way here as well. Whatever works best for you is the decision to go with.
Can't wait to cut him off of my life in every possible way.
It's a smart choice to remove the contact and move on. It's a fresh beginning in a sense and I can understand how that probably feels good for you.