This has been completely abandoned since ipa v1 and is not built by default.
Instead of carrying dead weight, let's remove it for now.
Fixes: https://fedorahosted.org/freeipa/ticket/761
The new framework uses default.conf instead of ipa.conf. This is useful
also because Apache uses a configuration file named ipa.conf.
This wipes out the last vestiges of the old ipa.conf from v1.