Modify ipahost module: the authentication is done locally on the controller

node and the credential cache is copied to the managed node

ipahost module is also using facts gathered from the server to find the
domain and realm.

site.yml

@@ -3,17 +3,6 @@
   hosts: ipaclients
   become: true
 
-  pre_tasks:
-
-  - name: For OTP client registration, add client and get OTP
-    ipahost:
-      keytab: files/admin.keytab
-      fqdn: "{{ ansible_fqdn }}"
-      random: True
-    register: ipahost
-    delegate_to: "{{ groups.ipaservers[0] }}"
-
   roles:
   - role: ipaclient
     state: present
-    ipaclient_otp: "{{ ipahost.host.randompassword }}"