This is tagged as a public right of way (Nettleden with Potten End FP 16), so it's hardly a desire line path.

If it's not a PRoW and the line of the PRoW is elsewhere, it would be helpful if your changeset comment actually described the problem and what you've done.

I assume that National Trust has a team which deals with PRoW issues, are they aware of this?

Also, before you consider deleting anything, please read:
https://wiki.openstreetmap.org/wiki/Why_can%27t_I_delete_this_trail%3F