SPRINGFIELD — With weeks to go before the state’s high court decides whether the city of Chicago can destroy decades-old police misconduct records, Illinois Attorney General Kwame Y. Raoul entered the fray urging the justices to order the archives remain preserved.The state’s top lawyer filed an amicus brief on Wednesday supporting the overturning of an arbitrator’s decision that the city must destroy records five years after their creation.Raoul’s brief stressed the records’ role in the …