The default pip_links is no longer useful for informing
pip of extra places to find wheels. With pypiserver
implemented it will serve all the wheels available on
the repo, so the find-links implementation is redundant.
Also, it's not working anyway. Pip delivers this error:
Skipping link http://x.x.x.x:8181/os-releases/y.y.y/ubuntu-16.04-x86_64/ (from -f); unsupported archive format: .04-x86_64
The pip_links variable can now just be used as a way of
telling pip about more wheel sources, rather than for
the wheels on the repo server.
Depends-On: https://review.openstack.org/562544
Depends-On: https://review.openstack.org/563100
Change-Id: Ic3780ec0f449d0d5e8f17404964d7d967de28b76
Implements: blueprint python-build-install-simplification
Signed-off-by: Jesse Pretorius <jesse.pretorius@rackspace.co.uk>