Qualify Street Fighter's Dudley

BUR #30708 has been rejected.

rename dudley -> dudley_(street_fighter)
deprecate dudley

Potentially ambiguous with other characters named "Dudley".

This bulk update request is pending automatic rejection in 5 days.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #30708 (forum #304440) has been rejected by @DanbooruBot.