I cannot see any item relisted with a reserve, however, to stop an auto relist on auctions when listing, to the right of Format >> Auction click on the 2 tiny uneven horizon lines >> See Pricing options. From drop down menu there, deselect the Auto relist option. At the same time, you can remove the reserve before selecting the final List Item with Displayed Fees button.
If you list items in a Buy it Now format these are listed Good Till Cancelled and will automatically relist every 30 days, until sold, or you manually end the item.
@mo_344447