Donald Trump’s campaign strategist Roger Stone – embroiled with his boss in a “you can’t fire me/I quit” hissy fit – says he resigned in part because of Trump’s “diversion to food fight” with Megyn Kelly “away from core issue messages.” After the Washington Post broke the news Saturday morning that Trump had fired Stone, Stone tweeted “Sorry @realDonaldTrump didn’t fire me – I fired Trump,” then cited the Kelly imbroglio as a reason. “Very anxious to see the direction of…