CBS has taken down the poll.
No it hasn't. I just checked it at 4:14 PM Eastern time on Saturday afternoon (while watching the Tigers-A&M game, of course) and if you go to the CBS News website: LINK
click on "Politics" at the top of the page (the obvious correct category for a political poll) and get: LINK
Click on the 6th story down on the left hand side and get: LINK
which includes this quote:
"Just seven percent of Americans think the Affordable Care Act is working well and should be kept in place as it is. Instead, 48 percent think there are some good things in the law, but changes are needed to make it work better, and another 43 percent think the law needs to be repealed entirely."