Fix the renderer generation script. We no longer use the DISALLOW_COPY_AND_ASSIGN macro. BUG=angleproject:956 Change-Id: I439c4d55612059d6a16ae6351c54c3817be017cf Reviewed-on: https://chromium-review.googlesource.com/263480 Reviewed-by: Brandon Jones <bajones@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>