Removing unused imports

src/main/java/com/gmail/nossr50/party/Party.java

@@ -10,8 +10,6 @@ import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.Iterator;
-
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;