PS. They did consider moving the restaurant as part of the 1982 remodel of Fantasyland. But, believe it or not, nobody at Disney could figure out how to move a concrete pirate ship without breaking it. Even 30 feet or so!
And there was never a Jolly Roger that elaborate at the Magic Kingdom of Walt Disney World. Only the Wicked Wench inside Pirates of the Caribbean. HOWEVER. There was a small wrecked ship at Discovery Island: