Explicitly return NO CONTENT type response for http DELETE request

Change-Id: I920084b92197bb1687e7d978ad350b2e1290ecbc
diff --git a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2PortsWebResource.java b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2PortsWebResource.java
index 1c37a2d..17d48a5 100644
--- a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2PortsWebResource.java
+++ b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/rest/NeutronMl2PortsWebResource.java
@@ -108,10 +108,8 @@
 
     @Path("{id}")
     @DELETE
-    @Consumes(MediaType.APPLICATION_JSON)
-    @Produces(MediaType.APPLICATION_JSON)
     public Response deletePorts(@PathParam("id") String id) {
         log.trace(String.format(PORTS_MESSAGE, "delete"));
-        return Response.status(Response.Status.OK).build();
+        return Response.noContent().build();
     }
 }