Prince Andrew’s “£1million-a-year” allowance has been finally axed by King Charles in a brutal blow. An updated biography by royal commentator Robert Hardman has revealed that in recent weeks, the monarch instructed his Keeper of the Privy Purse, the monarchy’s finance director, to sever the Duke of York’s annual personal allowance. This is believed to be in the region of £1million a year. In addition, the King, 75, is no longer paying for Andrew’s seven-figure private security detail. A source told The Mail: “The duke is no longer a financial burden on the King.” The King is also understood t…