Emma Corrin felt “so bad” killing off Chris Evans’ alter ego Johnny Storm in ‘Deadpool and Wolverine’. The 28-year-old star’s vicious alter ego, Cassandra Nova, obliterated The Human Torch after his cameo in the Marvel blockbuster, and she “felt terrible” because fans were “so excited” to see him reprise the Fantastic Four role. She told British GQ: “I felt so bad when we were in the screening the other day. “Because we watched it after the New York premiere with all these Lincoln Center full of fans, and everyone was so excited when they see him appear on screen, and then after three minutes,…