Activision and Infinity Ward revealed Call of Duty: Modern Warfare 4 yesterday, which will be the first entry in this generation to release only on current-gen consoles, leaving PlayStation 4 and Xbox One behind. It won’t be alone, as Call of Duty Warzone is also abandoning last-gen hardware.In a blog post, Activision announced that Call of Duty’s popular battle royale is being removed from PS4 and Xbox One storefronts on June 4. Once this happens, it will no longer be…