Compare config files in /var/www/openshift, not with /etc.

The file /etc/openshift/plugins.d/openshift-origin-auth-remote-user.conf
contains

   TRUSTED_HEADER="REMOTE_USER"

which can be valid for multiple authentication mechanisms. It does not
however ensure that broker and console will use the same mechanisms.

Addressing
WARN: test_auth_conf_files
        The two authentication configuration file names set up for the console and broker do not match;
        please ensure that they are using the same authentication mechanism.
        Authentication configration files:
        Broker: /etc/openshift/plugins.d/openshift-origin-auth-remote-user.conf

        Console: /var/www/openshift/console/httpd/conf.d/openshift-origin-auth-remote-user-kerberos.conf