Apple on Thursday removed the popular game "Fortnite" from the App Store and, in doing so, fell right into the trap set by the game's maker, Epic Games..Epic set its snare by intentionally breaking one of Apple's rules, offering "Fortnite" players an alternative way to pay for its virtual currency than through the App Store. Apple's response of banning "Fortnite" is likely to help Epic win a public-relations battle - and served as a case in point for the lawsuit it immediately filed charging the iPhone maker with anticompetitive behavior. The way Apple runs the App Store has come under increasing scrutiny, but Epic's suit, which lays out a damning case against the company, could be its biggest challenge yet.