MADRID—Zinedine Zidane is stepping down as Real Madrid coach, again. The club said Thursday the Frenchman is leaving his job, a few days after a season in which Madrid failed to win a title for the first time in more than a decade. The club said Zidane “decided to bring an end to his current spell” as Madrid’s coach. “We must now respect his decision and express our gratitude for his professionalism, dedication and passion over the years and what he means to Real Madrid,” the club said in a statement. Zidane had a contract through June 2022. “Zidane is one of Real Madrid’s great icons and his legacy extends beyond what he has achieved as a coach and player at our club,” Madrid said. “He is aware that he has a place in the hearts of the Real Madrid fans and that he will always have a home at …