Removing it felt momentous and insane. But in November 2018 I finally plucked up the courage and removed it. The crazy thing is, until this article appeared on the top of Hacker News reminded me, I had completely forgotten that I had removed it. Far from the world ending, it turned out to be the most inconsequential thing imaginable.
(I remember pouring over web server logs in Analog and AWStats 15+ years ago. Now I honestly can't remember why. I think it was some combination of vanity... and because everyone else was doing it. I suspect for most web developers GA was just the natural evolution of that muscle memory.)