remove references to netstack in setup.py
remove references to netstack in setup.py

bug 1154388

Change-Id: I1265b93edaa997405909e6e3dc408f365f2043e9

Tehsmash/networking-cisco,Tehsmash/networking-cisco-nexus,nikolay-fedotov/networking-cisco,hareeshpc/networking-cisco,Gitweijie/first_project,Tehsmash/networking-cisco-apic,hareeshpc/networking-cisco,CiscoSystems/networking-cisco,noironetworks/networking-cisco,openstack/networking-cisco,Tehsmash/networking-cisco,noironetworks/networking-cisco,cisco-openstack/networking-cisco,Gitweijie/first_project,openstack/networking-cisco,cisco-openstack/networking-cisco,CiscoSystems/networking-cisco