Hiding a topic enough to keep it from Google?

[socceronly]

Someone resurrected an old NSFW thread on a board I took over. I didn't know it was even there from like 4 years ago.

Google is about to yank the  adsense account.

I used Hide in topic moderation.  Not sure that is good enough.

Is there a more permanent way to remove the thread so no one can view it but it could still come back later if they go with no Adsense?

 

 

[socceronly]

Bugger it. Just deleted it. 

But it would be good to know for the future.