CLEVELAND — No panic, no playing around. Just California cool.The Golden State Warriors simply did what they had to do, and now they’re going home in the same shape as when they left — tied in the NBA Finals.Stephen Curry and Andre Iguodala scored 22 points apiece and the Warriors, showing their depth and why they were the league’s best team all season, squared the finals at 2-2 on Thursday night with a 103-82 victory over the Cleveland Cavaliers.Game 5 is Sunday night at Oakland’s rambunctious Oracle Arena, where the teams split two overtime games last week.“We’ve seen it all year, every team we go up against, we use our strength in numbers,” said Iguodala, who made a surprise start.