Hello James, and welcome to OpenStreetMap.
Andy from OSM's Data Working Group here.  This change has been flagged to us because it has a lot of deletions in it.
After looking at it, I'm worried that some of the changes here will have the opposite effect to the one that you desire.
An example, https://www.openstreetmap.org/way/1307126023/history was mapped before as sac_scale=demanding_mountain_hiking .  Just deleting it might mean that someone might add it back without those tags, meaning that it could show up in hiking apps designed for regular tourists, misleading them into attempting something that they should not.
If it genuinely doesn't exist as any sort of path (but might be visible on old out of copyright maps or imagery) other tags would be better - perhaps "disused:highway".  If it does exist but is beyond anything normally tagged in OSM as "path", then again some other tag (perhaps "scramble"?) might be better.
I'd also suggest discussing it with the wider community in the forum at https://community.openstreetmap.org/tags/c/communities/uk/86/scotland - you can login there with your regular OSM account.
Best Regards,
Andy
