Tells an observer that one or more transactions have been removed from the queue.
- iOS 3.0+
- macOS 10.7+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 6.2+Beta
The payment queue that updated the transactions.
An array of the transactions that were removed.
Your application does not typically need to implement this method but might implement it to update its own user interface to reflect that a transaction has been completed.