You're presumably talking about https://www.openstreetmap.org/way/1154315514 .

The tagging highway=link was me mis-remembering highway=footway + footway=link. Though possibly highway=no would be better here. Either way though, the segment is needed to be able to map the legal route of the Public Footpath, so it shouldn't be deleted.

(It would have been better to wait for a response here rather than just deleting a way whose tagging you didn't understand. And your changeset comment of "fixing tags" is not a good description when the only action is to completely delete an object.)