Members of the royal family are hoping Prince Andrew can clean up his legal mess quickly. Prince Charlesand Prince William are urging the Duke of York to get his sexual assault case straightened out ASAP, according to The Sun. The royal father-son duo apparently want the whole ordeal “settled as soon as possible,” as there are “deep worries” amongst the royals that “this will get worse and worse for the family.” Andrew, 61, is facing a case against Virginia Giuffre, who claims to have been forced to have sex with the royal on three separate occasions when she was still a minor. The now-38-year…