address U1000: func is unused
address U1000: func is unused

It seems that the State field in cdp.Frame is not used any more,
maybe we should remove this field completely.

issue found by staticcheck (https://staticcheck.io/)

knq/chromedp,chromedp/chromedp,knq/chromedp,knq/chromedp,chromedp/chromedp,chromedp/chromedp