Buy it Now items are now all listed as ' Good Till Cancelled' so basically, it is what it says on ' the tin' , they will keep relisting, until you end them manually.
So for the two items you have now on your listings, and do not wish to sell, go right of them to More Actions, and select End Listing, and choose the most appropriate one for the reason.
If you are on the seller hub page, go left of the item, tick the little box, scroll up to Actions >> End.
