shutdown domain after test completes

Author: vanajamukkara

integration-tests/src/test/java/oracle/kubernetes/operator/ITOperator.java

@@ -237,7 +237,7 @@ public void test9CreateDomainOnExistingDir() throws Exception {
     if (domain1 == null) {
       domain1 = TestUtils.createDomain(domain1YamlFile);
       // create domain on existing dir
-      // domain1.destroy();
+      domain1.destroy();
     }
     logger.info("domain1 " + domain1);
     domain1.createDomainOnExistingDirectory();