Easement removal

Hi I have a right of way easement on my property, this was in place before I purchased the property, and the right of way requirement became un required, as a new road access to the property behind mine was built even before we bought our property,
The owner of the property behind Me is consenting to the removal of the easement!

What forms do I need to send in and do I need a supporting letter from the landowner Behind Me?

Hi Steve - see our PG 62 section 12 for guidance - Easements (PG62) - GOV.UK (www.gov.uk)
If it's a registered right of way and the benefiting landowner behind you is willing to release it then it's very likely that you will need to both enter into a deed of release or similar. And then register that against both titles.
If anyone else enjoys the registered tight then they would need to be included also I suspect. And if your neighbour's title is mortgaged then the lender would need to also be involved/consent in most cases
Whilst you don't have to use a conveyancer we would always recommend that you do as they are familiar with the forms/process and legal requirements. And if mortgaged properties the lenders may insist you use one as well.