Fixing checkstyle

Author: joakime

jetty-ee9/jetty-ee9-servlet/src/test/java/org/eclipse/jetty/ee9/servlet/ServletContextHandlerTest.java

@@ -38,7 +38,6 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.stream.Stream;
-
 import javax.management.MBeanServer;
 import javax.management.ObjectName;