Don't remember if you could swipe away or not on Chrome...thought you could on the Google app (Discover), but I see you can't now. But on both you can still tap the menu button (three dots) on each story and select 'Hide Story'.
Sorry should have attached a pic to make it easier . Up til yesterday you could swipe left or right to remove stories that you had read. Now as some one else mentioned you have to tap the 3 dots then hide the article. They actually added more steps to do something that was very simple.
That sounds like something Google would do. But I thought the swiping away of stories went away a long time ago -- it's been a while since I looked at stories on the Google website, since I usually use the Google app's Discovery feed.