adamxcl - 2:29 am on Mar 29, 2012 (gmt 0)
I wouldn't remove it just temporarily for a short time like that. If I did it, I would probably do it for weeks or even months to really see what happens. I sometimes wonder if rankings and traffic (because more people may also link or talk about a clean site) could go up without ads for a while.
I have seen a consistent uptick whenever I take a section and change the code in some way. It might be type of ad, channel, size of ad, color, something that always isn't even visible. But pretty much all the stats improve for a few days and then tank back to where they were. I have thought about making changes every few days to see how long it sticks but haven't tested that yet.