build-vm: drop 04-inittab

Not used by systemd and looks obsolete generally
as sysvinit-based disk images aren't really targeting
low-resource systems these days _by default_ but rather
_can_ target those as well; feel free to reconstruct
these "RAM saving" bits as a part of e.g. lowmem patch.

features.in/build-vm/image-scripts.d/04-inittab

@@ -1,6 +0,0 @@
-#!/bin/sh -e
-# we don't need no extra gettys in VMs
-[ -s /etc/inittab ] || exit 0
-# ...except when it's a real disk image, not a VM for sure
-[ `arch` = e2k ] && exit 0
-sed -i 's,^[3-9]\+:[0-9]\+:respawn:/sbin/mingetty.*,#&,' /etc/inittab