Two men who claim they were framed for murder by Chicago police officers were released Wednesday after 23 years of incarceration.Their release came hours after the Cook County state’s attorney dropped the charges against Armando Serrano and Jose Montanez for the murder of Rodrigo Vargas in February 1993.Cook County Circuit Judge LeRoy K. Martin Jr., presiding judge of the court’s Criminal Division, vacated their convictions Wednesday.“It’s a great day for justice,” said Russell R. Ainsworth …