ipa[server,replica,client]: Remove unused variables and wrong doc strings

roles/ipaclient/action_plugins/ipaclient_get_otp.py

roles/ipaclient/library/ipaclient_get_otp.py

roles/ipaclient/library/ipaclient_setup_ntp.py

roles/ipaclient/library/ipaclient_test.py

roles/ipaclient/library/ipaclient_test_keytab.py

roles/ipareplica/library/ipareplica_add_to_ipaservers.py

roles/ipareplica/library/ipareplica_create_ipa_conf.py

...replica/library/ipareplica_custodia_import_dm_password.py

roles/ipareplica/library/ipareplica_ds_apply_updates.py

roles/ipareplica/library/ipareplica_ds_enable_ssl.py

roles/ipareplica/library/ipareplica_enable_ipa.py

roles/ipareplica/library/ipareplica_install_ca_certs.py

roles/ipareplica/library/ipareplica_krb_enable_ssl.py

roles/ipareplica/library/ipareplica_master_password.py

roles/ipareplica/library/ipareplica_promote_openldap_conf.py

roles/ipareplica/library/ipareplica_promote_sssd.py

roles/ipareplica/library/ipareplica_restart_kdc.py

roles/ipareplica/library/ipareplica_setup_adtrust.py

roles/ipareplica/library/ipareplica_setup_ca.py

roles/ipareplica/library/ipareplica_setup_certmonger.py