docs: Remove packages.wand.net.nz for debian packages.
docs: Remove packages.wand.net.nz for debian packages.

The packages from there has a bug with OVS 2.9.x.
I will maintain a repo for OVS/OVN till we have a more
official way of supporting it.

We also don't need python libraries anymore.

Signed-off-by: Gurucharan Shetty <a1872e333d0e52644f6125da2276530f7ebe5e77@ovn.org>

shettyg/ovn-kubernetes,shettyg/ovn-kubernetes,shettyg/ovn-kubernetes