Here's how you can delete your fingerprints from iOS 7.1's Touch ID.
1. Go to Settings.
2. Go to Touch ID & Passcode.
3. Type in your iOS passcode.
4. Tap on the fingerprint you want to delete.
5. Tap on Delete Fingerprint.
Continue this until you've deleted all of the fingerprints you don't want to have in iOS 7.1.
Touch ID is one of the things Apple says they've improved and made more reliable with iOS 7.1. As with any complex piece of software, however, what makes things better for many people can sometimes break it for a few. That seems to be the case with Touch ID and iOS 7.1.More at iMore
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