Revert "openstack - use apache::site"

This reverts commit 851859c7f5a932e1ad0eb75b7d6172639e1e493b.

"Error: Failed to apply catalog: Could not find dependency File[/etc/apache2/sites-enabled/wikitech.wikimedia.org] for File[/etc/apache2/conf.d/ports-wikitech.conf] at /etc/puppet/manifests/openstack.pp:417"

Change-Id: I00a9e2fea9129eca8ea8655084739523b300fe46