Originally Posted by DiapDealer
EDIT: However, extensive testing with the Kindle Touch emulation mode of Kindle Previewer reveals that none of the above methods removes the underline. I can get rid of the underline in every single device mode except the Kindle Touch. Could be a bug of the Previewer or the Device itself. I don't have a real device to test it on.
If you'd like to post a sample, I'll be happy to try it on my Touch.