Drop unused requirements
Drop unused requirements

In the split we forgot to drop some requirementes that belong only to
kuryr-libnetwork. This patch removes all the requirementes that are not
explicitly used in the kuryr.lib namespace.

Change-Id: Ia31c402e90e92802b5f096072799eacfa122aaca
Signed-off-by: Antoni Segura Puimedon <dc6adfafa1816104538e250c6bf1b7156f3887c2@celebdor.com>

openstack/kuryr,celebdor/kuryr,celebdor/kuryr,openstack/kuryr