code: @DELETE
      public Response deleteResource(@PathParam(JaxRxConstants.SYSTEM) final String system,
          @PathParam(JaxRxConstants.RESOURCE) final String resource, @Context final HttpHeaders headers) {
  
          final JaxRx impl = Systems.getInstance(system);
          final String info = impl.delete(new ResourcePath(resource, headers));
          return Response.ok().entity(info).build();
      }
docs: This method will be called when an HTTP client sends a DELETE request to
  delete an existing resource.
  
  @param system
  The associated system with this request.
  @param resource
  The name of the existing resource that has to be deleted.
  @param headers
  HTTP header attributes.
  @return The HTTP response code for this call.