I agree with the people who say they use need to mix it up every time they go out. Give some songs a rest, let us miss them, and then bring them back refreshed / revitalized.
However, there are a handful of songs that have either never done it for me or that I'm just tired of:
Still Haven't Found (this is among my least favorite U2 hits, weird I know)
Stuck in a Moment
Sweetest Thing (not really played that much so it's not a major problem)
Honestly that's all I'm coming up with, though. I get people who are tired of Mysterious Ways / Real Thing / On