Remove vxlan from default tenant network types
Remove vxlan from default tenant network types

When deployment with VLAN's is selected, and there're no more VLAN to use
for created network, Neutron tries to create a network with VXLAN segmentation,
which is not supported currently. To prevent this behaviour VXLAN is removed
from default tenant network types

Change-Id: Ifa5e5c1c17ccd44c5dba9f6f6c7e3f5df5942cee
Closes-bug: #1423345

xarses/fuel-library,huntxu/fuel-library,SmartInfrastructures/fuel-library-dev,zhaochao/fuel-library,eayunstack/fuel-library,ddepaoli3/fuel-library-dev,stackforge/fuel-library,eayunstack/fuel-library,eayunstack/fuel-library,huntxu/fuel-library,SmartInfrastructures/fuel-library-dev,huntxu/fuel-library,ddepaoli3/fuel-library-dev,stackforge/fuel-library,huntxu/fuel-library,xarses/fuel-library,eayunstack/fuel-library,zhaochao/fuel-library,SmartInfrastructures/fuel-library-dev,stackforge/fuel-library,huntxu/fuel-library,SmartInfrastructures/fuel-library-dev,eayunstack/fuel-library,xarses/fuel-library,zhaochao/fuel-library,stackforge/fuel-library,zhaochao/fuel-library,SmartInfrastructures/fuel-library-dev,ddepaoli3/fuel-library-dev,zhaochao/fuel-library,ddepaoli3/fuel-library-dev,ddepaoli3/fuel-library-dev,xarses/fuel-library