Photo: Getty Images The mop cart has been replaced. As Taylor Swift arrived at the first Chiefs home game against the Philadelphia Eagles, she found a new way to disguise herself. A team was seen opening up a pop-up wall on Swift’s route to her suite inside the stadium — so, she was not seen at all, but sources confirm to “ Page Six ” that she did attend the game. Fans also claimed to have seen Swift’s mother, Andrea, and her brother, Austin, peeking through the barrier as well. None of the