[ipa] Remove nagios leftovers

There was a nagios task in IPA role and as the Nagios is no longer
around let's remove it.

Signed-off-by: Michal Konecny <mkonecny@redhat.com>

roles/ipa/server/tasks/scripts.yml

@@ -72,20 +72,3 @@
   tags:
   - ipa/server
   - otp_script
-
-#
-# Nagios monitoring
-#
-- name: Create the service for nagios monitoring
-  ansible.builtin.include_role:
-    name: "keytab/service" # noqa role-name[path]
-    apply:
-      tags:
-      - ipa/server
-      - config
-      - keytab
-  vars:
-    host: "{{ ipa_server }}" # noqa: var-naming[no-role-prefix]
-    service: monitoring # noqa: var-naming[no-role-prefix]
-    owner_user: nagios
-    owner_group: nagios