suppressing some useless log messages and banners in unit tests (#752)

* suppressing some useless log messages and banners in unit tests

* some more log suppressed

webgoat-lessons/cross-site-scripting/src/main/java/org/owasp/webgoat/xss/CrossSiteScriptingLesson3.java

@@ -67,7 +67,6 @@ public class CrossSiteScriptingLesson3 extends AssignmentEndpoint {
             }
 
             if (includeCorrect && firstNameCorrect && lastNameCorrect) {
-                System.out.println("true");
                 return success(this).feedback("xss-mitigation-3-success").build();
             } else {
                 return failed(this).feedback("xss-mitigation-3-failure").build();