Remove wait-iptables-init.service

Code to wait for iptables to start was added (to startironic.sh) in the
RHEL 7 era. We kept it because we were not sure it was still needed. We
now know that when oneshot systemd services are restarted, it prevents
any of the services that depend on them from starting. It follows that
the wait-iptables-init service is not having any effect today in RHEL 9,
so it can be removed.

Author: zaneb

data/data/bootstrap/baremetal/files/etc/containers/systemd/ironic-dnsmasq.container

@@ -3,8 +3,8 @@ Description=DHCP Service for Provisioning Network
 BindsTo=ironic-volume.service
 Requires=build-ironic-env.service provisioning-interface.service
 PartOf=ironic.service
-Wants=network-online.target wait-iptables-init.service
-After=network-online.target ironic-volume.service build-ironic-env.service provisioning-interface.service wait-iptables-init.service
+Wants=network-online.target
+After=network-online.target ironic-volume.service build-ironic-env.service provisioning-interface.service
 
 [Container]
 ContainerName=dnsmasq

data/data/bootstrap/baremetal/files/etc/containers/systemd/ironic-httpd.container.template

@@ -1,10 +1,10 @@
 [Unit]
 Description=HTTP Server for Ironic
 BindsTo=ironic-volume.service
-Requires=build-ironic-env.service wait-iptables-init.service
+Requires=build-ironic-env.service
 PartOf=ironic.service
 Wants=network-online.target
-After=network-online.target ironic-volume.service build-ironic-env.service extract-machine-os.service provisioning-interface.service wait-iptables-init.service
+After=network-online.target ironic-volume.service build-ironic-env.service extract-machine-os.service provisioning-interface.service
 
 [Container]
 ContainerName=httpd

data/data/bootstrap/baremetal/files/etc/containers/systemd/ironic.container.template

@@ -1,15 +1,15 @@
 [Unit]
 Description=Ironic baremetal deployment service
 BindsTo=ironic-volume.service
-Requires=build-ironic-env.service wait-iptables-init.service
+Requires=build-ironic-env.service
 {{ if .PlatformData.BareMetal.ProvisioningIP }}
 Requires=provisioning-interface.service
 {{ end }}
 {{ if .PlatformData.BareMetal.ProvisioningDNSMasq }}
 Wants=ironic-dnsmasq.service
 {{ end }}
 Wants=network-online.target ironic-httpd.service ironic-ramdisk-logs.service extract-machine-os.service
-After=network-online.target ironic-volume.service build-ironic-env.service wait-iptables-init.service provisioning-interface.service ironic-dnsmasq.service extract-machine-os.service
+After=network-online.target ironic-volume.service build-ironic-env.service provisioning-interface.service ironic-dnsmasq.service extract-machine-os.service
 
 [Container]
 ContainerName=ironic