Remove oreg_auth_credentials_replace from inventory

inventory/hosts.example

@@ -188,8 +188,6 @@ debug_level=2
 #oreg_auth_password='my-pass'
 # NOTE: oreg_url must be defined by the user for oreg_auth_* to have any affect.
 # oreg_auth_pass should be generated from running docker login.
-# To update registry auth credentials, uncomment the following:
-#oreg_auth_credentials_replace: True
 
 # OpenShift repository configuration
 #openshift_additional_repos=[{'id': 'openshift-origin-copr', 'name': 'OpenShift Origin COPR', 'baseurl': 'https://copr-be.cloud.fedoraproject.org/results/maxamillion/origin-next/epel-7-$basearch/', 'enabled': 1, 'gpgcheck': 1, 'gpgkey': 'https://copr-be.cloud.fedoraproject.org/results/maxamillion/origin-next/pubkey.gpg'}]