ORLANDO, Fla. — A federal judge overseeing the First Amendment lawsuit that Walt Disney Parks filed against Gov. Ron DeSantis and others is disqualifying himself, but not because of bias claims made by the Florida governor.Chief U.S. District Judge Mark Walker said in a court filing Thursday that it was because a relative owns 30 shares of Disney stock. Walker described the person as “a third-degree relative,” which typically means a cousin, a great-aunt or great-uncle, or a great-niece or great-nephew …