Same party with burden and benefit of restrictive covenants

As above, we have a client who owns two titles one which is burdened with restrictive covenant and  they own other neighbouring title has benefit of restrictive covenant as a successor in title. Can they enter a Deed of unilateral release? They are looking to sell the burden title and would prefer covenant cleared prior?

Amit - you can apply to release/remove the restrictive covenant(s) using form AP1 and supporting evidence to demonstrate how released, The key considerations will be does the person releasing the covenant own the benefiting land
No fee