def removeFriend(self, user):
user = self.user(user)<EOL>url = self.FRIENDUPDATE if user.friend else self.REMOVEINVITE<EOL>url = url.format(userId=user.id)<EOL>return self.query(url, self._session.delete)<EOL>
Remove the specified user from all sharing.

            Parameters:
                user (str): MyPlexUser, username, email of the user to be added.