Remove noop assignment to configId in DisplayWGL It is overwritten by ConfigSet::add. BUG=angleproject:892 Change-Id: I23becb235969c6aeda216014fd06880bd7cc5f67 Reviewed-on: https://chromium-review.googlesource.com/269410 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Corentin Wallez <cwallez@chromium.org>