“Evil Dead Burn” is the second in a series of fresh reboots intended to give promising early-career horror directors a shot at flexing their meanest muscles. By BEATRICE LOAYZA Heads are severed and mutilated yet again in the latest “Evil Dead” installment, which understands, at the very least, that any inheritor of the 1981 cult classic by Sam Raimi must strive to unleash a torrent of shamelessly nasty thrills. The blood feast “Evil Dead Burn” is the second in a series of fresh reboots…
