Remove unused private static final variable

src/main/java/org/bukkit/craftbukkit/CraftServer.java

@@ -134,7 +134,6 @@ import org.bukkit.craftbukkit.util.CraftNamespacedKey;
 import org.bukkit.event.server.TabCompleteEvent;
 
 public final class CraftServer implements Server {
-    private static final Player[] EMPTY_PLAYER_ARRAY = new Player[0];
     private final String serverName = "CraftBukkit";
     private final String serverVersion;
     private final String bukkitVersion = Versioning.getBukkitVersion();