“Desperation certainly isn’t a new feeling for Integrity, the hardcore and heavy metal hybridists who’ve been getting low for more than two decades. But the staggered approach of “There Ain’t No Living in Life,” from the new record Suicide Black Snake, is somewhat novel: In his backroom rasp, Dwid Hellion doles out dead-end observations about life. As he speaks over a circular guitar line, he sugge”