feat: discard any traces of NTP configs

tasks/migrate_ntpd_to_esxi_timesync.yml

@@ -8,7 +8,17 @@
     state: absent
     purge: "{{ true if ansible_os_family == 'Debian' else omit }}"
 
-# details can be found at sdvuda10 project, issue #2
+- name: purge NTP configuration
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: absent
+  loop:
+    - "/etc/cron.daily/ntp"
+    - "/etc/ntp.conf"
+    - "/etc/ntpsec/ntp.conf"
+
+# details can be found at sdvgubs10 project, issue #2
+# https://git.slub-dresden.de/slub-referat-2-4/sdvgubs10
 - name: make sure open-vm-tools are installed
   ansible.builtin.package:
     name: "open-vm-tools"