chore: remove install-config-file flag from the aro hcp service template

The install-config-file is an optional flag that is only used within the Hive provisioner. This is not required
for running CS on ARO HCP mode, therefore we should remove it from the template.

This removes the volume mount path '/configs/service' which only contains this install config yaml file and is not
used by anything else. It can safely be removed.

cluster-service/deploy/openshift-templates/arohcp-service-template.yml

@@ -323,28 +323,6 @@ objects:
     jwks.json: ""
     acl.yml: ""
 
-- apiVersion: v1
-  kind: ConfigMap
-  metadata:
-    name: clusters-service
-    labels:
-      app: clusters-service
-    namespace: ${NAMESPACE}
-  data:
-    # This file contains the default OpenShift installer configuration. It
-    # will be read when a new cluster is created, and merged with the
-    # configuration dynamically generated by the service.
-    install-config.yaml: |
-      apiVersion: v1
-      kind: InstallConfig
-      imageContentSources:
-      - source: quay.io/openshift-release-dev/ocp-release
-        mirrors:
-        - quay.io/openshift-release-dev/ocp-release
-      - source: quay.io/openshift-release-dev/ocp-v4.0-art-dev
-        mirrors:
-        - quay.io/openshift-release-dev/ocp-v4.0-art-dev
-
 - apiVersion: v1
   kind: ConfigMap
   metadata:
@@ -443,9 +421,6 @@ objects:
         - name: proxy
           configMap:
             name: cluster-proxy-service-config
-        - name: config
-          configMap:
-            name: clusters-service
         - name: azure-runtime-config
           configMap:
             name: azure-runtime-config
@@ -500,8 +475,6 @@ objects:
             mountPath: /configs/region-constraints
           - name: proxy
             mountPath: /configs/proxy
-          - name: config
-            mountPath: /configs/service
           - name: mixin-pull-secret
             mountPath: /secrets/mixin-pull-secret
           - name: instance-types
@@ -561,7 +534,6 @@ objects:
           - --environment=${ENVIRONMENT}
           - --backplane-url=${BACKPLANE_URL}
           - --provision-shards-config=/secrets/shards/config
-          - --install-config-file=/configs/service/install-config.yaml
           - --proxy-config-file=/configs/proxy/config.yaml
           - --aws-sts-policy-directory=/configs/policies
           - --mixin-pull-secret-path=/secrets/mixin-pull-secret