Explicitly return NO CONTENT type response for http DELETE request

Change-Id: I920084b92197bb1687e7d978ad350b2e1290ecbc
diff --git a/web/api/src/test/java/org/onosproject/rest/resources/TenantWebResourceTest.java b/web/api/src/test/java/org/onosproject/rest/resources/TenantWebResourceTest.java
index 2f4d65b..eac37d7 100644
--- a/web/api/src/test/java/org/onosproject/rest/resources/TenantWebResourceTest.java
+++ b/web/api/src/test/java/org/onosproject/rest/resources/TenantWebResourceTest.java
@@ -289,7 +289,7 @@
                 .request(MediaType.APPLICATION_JSON_TYPE)
                 .delete();
 
-        assertThat(response.getStatus(), is(HttpURLConnection.HTTP_OK));
+        assertThat(response.getStatus(), is(HttpURLConnection.HTTP_NO_CONTENT));
 
         verify(mockVnetAdminService);
     }