title: Remove Last Two Characters in a String
body: <p>Is there a quick way to remove the last two characters in a String in Swift?  I see there is a simple way to remove the last character as clearly noted <a href="https://stackoverflow.com/questions/24122288/remove-last-character-from-string-swift-language">here</a>.  Do you know how to remove the last two characters?  Thanks!</p>