Added outdated event static properties

src/pocketmine/event/player/PlayerChatEvent.php

@@ -30,8 +30,6 @@ use pocketmine\Server;
  */
 class PlayerChatEvent extends PlayerEvent implements Cancellable{
 	public static $handlerList = null;
-	public static $eventPool = [];
-	public static $nextEvent = 0;
 
 	/** @var string */
 	protected $message;