I would say in any other circumstance that removing the word would be better, but any form of art or literature is characterized by how the entirety of its natural work is placed in the time and space it was created, and subsequently what we as people learn from it with time. Take Shakespeare. If the "official" works were changed in any way that had significance to our time and culture, then much of the gestalt of his work would be lost. The same goes for Twain. I know that "******" isn't a nice word, and I don't particularly like it, but it's not like when I watch The Godfather and hear them throw around words like "mick" "mwop" and even "******,"I think it should be changed for the comfort of the viewer. That's why we have art of disemboweled people burning in hell. Perhaps the disgusting is more teaching than the pleasant.