By Tzvi Machlin New York Jets wide receiver Denzel Mims has gone from promising second-round pick to potential preseason cut in just two years. But head coach Robert Saleh had an update that may bode well for him heading into training camp. Speaking to the media on Wednesday, Saleh spoke glowingly about the third-year wide receiver. He complimented Mims on being in shape and reaching all of the milestones the team set for him in the offseason. “Denzel’s doing better, second time around,” Saleh said. “He’s in fantastic shape, looks really good. He’s working on the things that we’ve asked him to…