Remove fsck on boot
Remove fsck on boot

As recommended in
https://nixos.org/wiki/Installing_NixOS_in_a_VirtualBox_guest#Desktop_Environment

rodamber/nixbox,zimbatm/nixbox,itkovian/nixbox,itkovian/nixbox,exicon/nixbox,zimbatm/nixbox,Tzrlk/nixbox,Tzrlk/nixbox