Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

Nodes to api-server relies by default certificates, and bootstrap
tokens, and there should be no need to generate tokens for every nodes,
even when enabling static token auth.

Also remove the group from the example inventory, since it should not be
needed anymore.

There is no need to have an extra variables for this, just use different
values per host (using Ansible group_vars, for example)

K8s is moving away from the "master" terminology, so kubespray should follow the same naming conventions. See https://github.com/kubernetes/community/blob/65d886bb3029e73d9729e1d4f27422a7985233ed/sig-architecture/naming/recommendations/001-master-control-plane.md

Signed-off-by: serge Hartmann <serge.hartmann@gmail.com>

Signed-off-by: tu1h <lihai.tu@daocloud.io>