This patch removes the openstack_user resource with :grant_domain
action. A user is always created within a specific domain; such a
membership cannot be tacked on later. This resource gave the users the
role intended for their project for the domain (i.e., for the Default
domain instead of for the service project).
We add the domain_name attribute that creates the users in the
desired domain. Note that this change needs a sufficiently recent
openstackclient cookbook -- otherwise the domain_name attribute is
ignored (which does not matter as long as the users are to be
created in the Default domain).
Change-Id: Ie793b3d2e0419da90888edbf33ff28d819892dcf
88c718d574