Remove unused import

Author: sworleys

rectangles/networking/Server.java

@@ -7,7 +7,6 @@
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.ExecutorService;
 
-import com.sun.xml.internal.bind.v2.runtime.reflect.Lister.Pack;
 
 import engine.GameObj;
 import engine.Player;