Revert "neutron-plugin: install contrail configuration"

This reverts commit 31579b1182f0e149aea6c0714460e3f6a7f94bf0.
This part of code is now managed by python-contrail package
see https://github.com/Juniper/contrail-neutron-plugin/pull/11#commitcomment-6351451
Merge pull request #98 from sbadia/neutron-conf

Revert "neutron-plugin: install contrail configuration"