With Pitta gone, Ravens kick tires on tight ends

Ravens tight end Dennis Pitta has dislocated the same hip he dislocated in training camp a year ago.  He’s done for the year, and the Ravens are looking for help. Per a league source, the Ravens worked out four tight ends on Tuesday:  Kellen Davis (pictured), Matthew Mulligan, Jake Murphy, and Emmanuel Ogbuehi. Veteran Owen…