Tarell Brown says he’s fired agent after losing $2 million salary increase

49ers cornerback Tarell Brown indicated Thursday that he has fired agent Brian Overstreet after losing a $2 million salary bump for 2013 by not taking part in the club’s offseason workouts. “That’s what agents get paid to do — to orchestrate the contract and let you know what you can and can’t do as far as workouts, OTAs,…