The very back row (Row 26) is coming out of the 319s, and for the exact reasons that Downwind_Left says, the rest of the seats are being left exactly as-is.
I'm guessing / hoping the poster is joking about this being a perfect place to pile cabin bags. With no way of securing the bags such as a pannier or net (which would be a mod to install) then the space from which the seats are removed can't be used.