You can remove your card from Apple Pay® by opening the “Settings” app.  Select “Wallet & Apple Pay”, then select the card you wish to remove.  Scroll down and tap “Remove Card”.

You can also remove a card in the Wallet app by selecting the card and tapping the “” symbol on the top right of screen.  Scroll down and tap “Remove Card”.

If you disable Face ID, Touch ID or device passcode or sign out of iCloud, all of your debit and credit cards will be removed from the device.