Spokeshaves are not prohibited from sale, but will be subject to eBay's knives and bladed items policy see: https://www.ebay.co.uk/help/policies/prohibited-restricted-items/knives-policy?id=5047
It may be that you were not complying with this in some way.
As for why your listing was removed, it will be because someone reported it. As you say, there are numerous others for sale, so perhaps there was something particular to your listing.
