'That-that don't kill him' can only make him stronger, it seems ... Kanye West sat stone-faced through Pete Davidson 's set at the Kevin Hart roast on Sunday ... even when he was the butt of the joke. ICYMI, Kim Kardashian 's comedian ex took the stage at the Kia Forum in L.A. and fired a shot at Kim's other ex during a bit about Tony Hinchcliffe . Pete said ... "Tony, nothing you say tonight will hurt my feelings. I was in a beef with Kanye so I've taken shots from better gay Nazis." Well, TMZ