Open the Wallet app on your iPhone
Tap the card you want to remove
Tap the More button
Tap Card Details
Tap Remove Card
Confirm the removal
On Apple Watch, open the Watch app on your iPhone
Tap Wallet & Apple Pay
Select the card
Tap Remove Card
On Mac with Touch ID, open System Settings
Click Wallet & Apple Pay
Select the card
Click Remove Card
On iPad, open Settings
Tap Wallet & Apple Pay
Select the card
Tap Remove Card