Remove potentially offensive word from last name list.

Found it quite weird to have a company called "Jewess Group" in my fake data, and could see how this might be offensive to some.

I'm not sure if this is an actual real last name or not, but since the last name provider is used as the basis for other providers which might be lacking in context, maybe it should just be removed.
Merge pull request #260 from joshuajabbour/patch-1

Remove potentially offensive word from last name list