Donald Sutherland, the prolific Canadian actor who roared to fame in the irreverent antiwar classic “MASH” and captivated audiences with his dramatic performances in films such as “Ordinary People” and “Don’t Look Now,” has died. Son Kiefer Sutherland also confirmed his father’s death “with a heavy heart” in a statement Thursday morning on social media. Hawkeye Pierce in “MASH” and …