In NVDA's Configuration profiles dialog, select a profile, and press alt+d or activate the "delete" button.

The "Confirm deletion" prompt appears. Options are Yes or No.

Pressing escape should select no and close the dialog without deleting, however it does nothing. There is no need for a "cancel" button as "No" performs the same function.

Not high priority, however potentially opens up possibility of inadvertently deleting a configuration profile if someone accidentally opens the delete prompt and thinks they have dismissed it with escape.