public void RemovePortGroup(VMware.Vim.HostConfigManager configMgr, string portGroupName)
{
VMware.Vim.ManagedObjectReference nMob = configMgr.NetworkSystem;
//HostNetworkInfo nwSystem = (HostNetworkInfo)this.GetDynamicProperty(nMob, "networkInfo");
vimService.RemovePortGroup(nMob != null ? new VimApi_55.ManagedObjectReference()
{
type = nMob.Type,
Value = nMob.Value
} : null, portGroupName);
}