Update OPENSTACK_ENDPOINT_TYPE documentation
The [1] change updated the behavior but the doc was
never updated so it's no longer valid.
[1]
@@ -593,9 +593,7 @@ OPENSTACK_ENDPOINT_TYPE
Default: ``"publicURL"``
A string which specifies the endpoint type to use for the endpoints in the
-Keystone service catalog. The default value for all services except for
-identity is ``"publicURL"`` . The default value for the identity service is
-``"internalURL"``.
+Keystone service catalog.
OPENSTACK_HOST
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