In a word "no".
Old owner of the "right of way" (shall we call him "A") never used it. It was overgrown and partly blocked. So "A" shook hands with the owner of the land over which the right of way passed (let's call him "B") to remove the right. "B" then tried to develop the land. Sadly for him, "A" sold to the unimaginatively titled "C" who then successfully claimed that his right of way remained valid.
The trouble was, the right was still noted on three registered titles. "B" took a massive gamble seeking to save costs by agreeing a release on a nod and a wink. It backfired spectacularly given the humongous cost of defending this action in the High Court .
Moral: get rights properly discharged and removed from the register.
If this is of interest, I'd love to hear from you. Feel free to call on 07816 755372 and let me know how I can help.
Where there is an equity by estoppel, it has effect as an interest capable of binding successors in title from the time the equity arises whether or not it has been recognised by the court [s 116 LRA 2002]. However, under [s 29 LRA 2002], a purchaser for valuable consideration is not bound by an interest unless it is protected under section 29(2)