Howard Stern said he was not even fazed after Jerry Seinfeld said the famed radio host is not very funny, revealing the sitcom star apologized repeatedly and wanted to do so via his platform. Stern spilled that Seinfeld asked to come on his SiriusXM radio show to clear the air, but Stern shut him down because it was not “necessary.” “Howard is a great interviewer, but comedy chops, I mean, can we speak candidly?” Seinfeld began while making the remarks, RadarOnline.com has learned. Seinfeld went on to note that Stern had been “outflanked” by other talented podcasters during an appearance onDan…