HBO has apologized for a scene in its hit fantasy series “Game of Thrones” that showed the decapitated head of former President George W. Bush on a pike and said the scene will be removed from future DVD releases, the Web site io9.com reported. ... “The last head on the left is George Bush,” the producers say in the audio commentary. “George Bush’s head appears in a couple beheading scenes. It’s not a choice, it’s not a political statement. It’s just, we had to use what heads we had around.”