dracut/30ignition: general hack cleanups

We're past the MVP phase now. Let's reflect that in our codebase by
dropping all the telltale signs of quick hacks and experimentations.
This makes the tree nicer to hack on as well.

Remember, all your code are belong to Git. We can always revive things
as needed as we get around to supporting Packet/DO, etc... Though those
units will need to be tweaked anyway.

Closes: #33

dracut/30ignition/ignition-generator

@@ -39,21 +39,6 @@ if $(cmdline_bool 'ignition.firstboot' 0); then
     add_requires ignition-disks.service
     add_requires ignition-files.service
     add_requires ignition-ask-var-mount.service
-    #if [[ $(cmdline_arg coreos.oem.id) == "packet" ]]; then
-    #    add_requires coreos-static-network.service
-    #fi
-
-    # On EC2, shut down systemd-networkd if ignition fails so that the instance
-    # fails EC2 instance checks.
-    #if [[ $(cmdline_arg coreos.oem.id) == "ec2" ]]; then
-    #    mkdir -p ${UNIT_DIR}/systemd-networkd.service.d
-    #    cat > ${UNIT_DIR}/systemd-networkd.service.d/10-conflict-emergency.conf <<EOF
-#[Unit]
-#Conflicts=emergency.target
-#Conflicts=emergency.service
-#Conflicts=dracut-emergency.service
-#EOF
-    #fi
 fi
 
 # Write ignition-setup.service customized for PXE/ISO or regular boot
@@ -86,10 +71,6 @@ if [ -n "$RANDOMIZE_DISK_GUID" ]; then
     add_requires "disk-uuid@${escaped_guid}.service"
 fi
 
-if [[ $(cmdline_arg coreos.oem.id) == "digitalocean" ]]; then
-    add_requires coreos-digitalocean-network.service
-fi
-
 oem_id=pxe
 if [[ $(systemd-detect-virt || true) =~ ^(kvm|qemu)$ ]]; then
     oem_id=qemu

dracut/30ignition/module-setup.sh

@@ -29,9 +29,6 @@ install() {
     inst_script "$moddir/ignition-setup.sh" \
         "/usr/sbin/ignition-setup"
 
-#   inst_script "$moddir/retry-umount.sh" \
-#       "/usr/sbin/retry-umount"
-
     inst_simple "$moddir/ignition-generator" \
         "$systemdutildir/system-generators/ignition-generator"
 
@@ -46,15 +43,6 @@ install() {
 
     inst_simple "$moddir/ignition-remount-sysroot.service" \
         "$systemdutildir/system/ignition-remount-sysroot.service"
-
-#   inst_simple "$moddir/sysroot-boot.service" \
-#       "$systemdsystemunitdir/sysroot-boot.service"
-
-#   inst_simple "$moddir/coreos-digitalocean-network.service" \
-#       "$systemdsystemunitdir/coreos-digitalocean-network.service"
-
-#   inst_simple "$moddir/coreos-static-network.service" \
-#       "$systemdsystemunitdir/coreos-static-network.service"
 }
 
 has_builtin_fw_cfg() {