The World Boxing Council is declaring the world super lightweight title vacant and ordering No. 1 ranked Junior Witter of Great Britain to face No. 2 ranked DeMarcus Corley of the United States for the vacant title.  The free negotiations period will begin today for both to reach an agreement and if no agreement is reached, the WBC will hold a purse offer on April 27, 2006.The winner of this bout will have to fight the official mandatory challenger, who is yet to be designated