8164119: MoveToOtherScreenTest fails due wrong key attribute

Reviewed-by: coffeys

test/java/awt/Container/MoveToOtherScreenTest/MoveToOtherScreenTest.java

@@ -39,7 +39,6 @@ import java.lang.reflect.InvocationTargetException;
    @summary IllegalArgumentException: adding a component to a container on a different GraphicsDevice
    @author Mikhail Cherkasov
    @run main MoveToOtherScreenTest
-   @key headful
 */
 public class MoveToOtherScreenTest {