Pittsburgh Brewing, forced into bankruptcy yesterday to avoid a cutoff of its water supply, plans to get rid of more than $6 million in pension obligations and emerge from bankruptcy with its ownership group intact, Vice Chairman Joseph Piccirilli said.From left, Pittsburgh Brewing Co.'s Valerie Stoltz, director of human resources; Tony Ferraro, vice president of sales and marketing; Jeff Vavro from media relations; and Joseph Piccirilli, vice chairman, talk after a news conference at the brewery in Lawrenceville yesterday afternoon