Move Grafana to ansible-role-grafana

Grafana now has its own role (DevOps/ansible-role-grafana). Remove its
tasks and LDAP template from this role and drop it from full.yaml.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tasks/full.yaml

@@ -32,4 +32,3 @@
   include_tasks: "{{ item }}"
   loop:
     - prometheus.yaml
-    - grafana.yaml

tasks/grafana.yaml

@@ -1,61 +0,0 @@
----
-# tasks file for grafana
-- name: Deploy Grafana
-  kubernetes.core.helm:
-    name: grafana
-    chart_ref: bitnami/grafana
-    release_namespace: grafana
-    create_namespace: true
-    values:
-      metrics:
-        enabled: true
-      admin:
-        user: grafana_admin
-        password: "{{ grafana_admin_password }}"
-      persistence:
-        size: 64Gi
-      grafana:
-        extraEnvVars:
-          - name: GF_SERVER_DOMAIN
-            value: grafana.eom.dev
-          - name: GF_SERVER_ROOT_URL
-            value: https://grafana.eom.dev/
-      smtp:
-        enabled: true
-        user: grafana
-        password: "{{ grafana_admin_password }}"
-        host: mail.eom.dev:587
-        fromAddress: grafana@eom.dev
-        fromName: Grafana
-      ldap:
-        enabled: true
-        allowSignUp: true
-        configuration: "{{ lookup('template', 'ldap.toml.j2') }}"
-      ingress:
-        enabled: true
-        pathType: Prefix
-        hostname: grafana.eom.dev
-        annotations:
-          cert-manager.io/cluster-issuer: ca-issuer
-        ingressClassName: nginx
-        tls: true
-      datasources:
-        secretDefinition:
-          apiVersion: 1
-          datasources:
-            - name: Prometheus
-              type: prometheus
-              access: proxy
-              orgId: 1
-              url: http://prometheus-server.prometheus.svc.cluster.local
-              version: 1
-              editable: true
-              isDefault: true
-            - name: Alertmanager
-              uid: alertmanager
-              type: alertmanager
-              access: proxy
-              orgId: 1
-              url: http://prometheus-alertmanager.prometheus.svc.cluster.local
-              version: 1
-              editable: true