ipa-client-automount: use nfs-utils unit

- remove nfs-idmapd from units we enable & start as:
  - it is not used on NFS clients anymore
  - it is a static unit
- remove rpc-gssd as well as it is a static unit
- restart nfs-utils and rpc-gssd
- manage systemctl-related exceptions during uninstall

Fixes: https://pagure.io/freeipa/issue/7780
Fixes: https://pagure.io/freeipa/issue/7781
Signed-off-by: François Cami <fcami@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>

ipaplatform/base/services.py

@@ -53,7 +53,8 @@ wellknownservices = ['certmonger', 'dirsrv', 'httpd', 'ipa', 'krb5kdc',
                      'dbus', 'nslcd', 'nscd', 'ntpd', 'portmap',
                      'rpcbind', 'kadmin', 'sshd', 'autofs', 'rpcgssd',
                      'rpcidmapd', 'pki_tomcatd', 'chronyd', 'domainname',
-                     'named', 'ods_enforcerd', 'ods_signerd', 'gssproxy']
+                     'named', 'ods_enforcerd', 'ods_signerd', 'gssproxy',
+                     'nfs-utils']
 
 # The common ports for these services. This is used to wait for the
 # service to become available.