setup-disk: fix initfs_features

We want have fewer features in the initfs and only add those that are
needed and detected.

This is a revert of 25c4933f

setup-disk.in

@@ -338,10 +338,7 @@ install_mounted_root() {
 	local mnt="$1"
 	shift 1
 	local disks="${@}" mnt_boot= boot_fs= root_fs=
-	local initfs_features=$(. /etc/mkinitfs/mkinitfs.conf >/dev/null 2>&1 && echo "$features")
-	if [ -z "$initfs_features" ]; then
-		initfs_features="ata base cdrom ext2 ext3 ext4 keymap kms mmc raid scsi usb virtio nvme"
-	fi
+	local initfs_features="ata base ide scsi usb virtio"
 	local pvs= dev= rootdev= bootdev= extlinux_raidopt= root= modules=
 	local kernel_opts="quiet"