Q: How do I delete ringtones after I deleted the app?

Hello everybody, I have an iPhone 6s Plus 16GB, iOS 9.1.

I Learned how to make ringtones from using the Garageband App and so I did. It worked beautifully and I learned how to delete them. From the share button tap on your ringtones and swipe left or press edit.

However my issue is the fact that I deleted the app and had not realized that I forgot to delete ringtones that I made within the app (only 2). So, I reinstalled the app and now I see that it did not save my past ringtones so now when I go on the iPhone's settings then sound, both ringtones would still be there but the app shows that there are no songs made or any songs that have been exported or made into ringtones.

So what I need help is to remove the past two ringtones. If this requires me to reset my iPhone then I would rather just live with it. If not please tell me how. Thank you.