Docs: Remove the TokenAuth middleware
Docs: Remove the TokenAuth middleware

Following by I09310bab6bd728127288ba4c3cf8f884a31e2b98

Change-Id: I15d70034502aae454ab16935e4957ed5f4d76976

openstack/keystone,openstack/keystone,openstack/keystone,mahak/keystone,mahak/keystone,mahak/keystone