[MetalLB] Remove unused resources (#10004)

* Fix MetalLB deploy

This will fix MetalLB deploy

* Remove `metallb_ip_range` check

* Remove missing `metallb-config.yml`

* fix template name

* make deployment of layer3 conditional

* revert

* revert

docs/metallb.md

@@ -133,7 +133,7 @@ metallb_config:
 
 When using calico >= 3.18 you can replace MetalLB speaker by calico Service LoadBalancer IP advertisement.
 See [calico service IPs advertisement documentation](https://docs.projectcalico.org/archive/v3.18/networking/advertise-service-ips#advertise-service-load-balancer-ip-addresses).
-In this scenario you should disable the MetalLB speaker and configure the `calico_advertise_service_loadbalancer_ips` to match your `metallb_ip_range`
+In this scenario you should disable the MetalLB speaker and configure the `calico_advertise_service_loadbalancer_ips` to match your `ip_range`
 
 ```yaml
 metallb_speaker_enabled: false

roles/kubernetes-apps/metallb/tasks/main.yml

@@ -5,12 +5,6 @@
   when:
     - "kube_proxy_mode == 'ipvs' and not kube_proxy_strict_arp"
 
-- name: Kubernetes Apps | Check cluster settings for MetalLB
-  fail:
-    msg: "metallb_ip_range is mandatory to be specified for MetalLB"
-  when:
-    - metallb_ip_range is not defined or not metallb_ip_range
-
 - name: Kubernetes Apps | Check BGP peers for MetalLB
   fail:
     msg: "metallb_peers is mandatory when metallb_protocol is bgp and metallb_speaker_enabled"
@@ -45,7 +39,7 @@
     src: "{{ item }}.j2"
     dest: "{{ kube_config_dir }}/{{ item }}"
     mode: 0644
-  with_items: ["metallb.yml", "metallb-config.yml", "pools.yaml", "layer2.yaml", "layer3.yaml"]
+  with_items: ["metallb.yml", "pools.yaml", "layer2.yaml", "layer3.yaml"]
   register: "rendering"
   when:
     - "inventory_hostname == groups['kube_control_plane'][0]"