Not till the end of times but at least until Sony officially pulls the plug on it don't you think? What's the hurry? It's not like there is that much hardware in that chart to begin with. If we take down the Vita simply cause it does not sell well compared to the 3DS then perhaps we should also take down the Xbox One and eventually as I said before, the 3DS and we might as well shut down the hardware chart cause we'd only have 2 systems left on it.
Why does it bother you so much to see the Vita there? Even if it sells poorly it's still officially Sony's portable system and as such it's rightfully part of that chart.
It doesn't "bother" me, lol. I was just curious since the Wii U had been removed and I wasn't around when the PS3/360 were taken off. That said, I'm going to call out faulty logic when I see it.