sdn: no longer kill docker0
We no longer use docker for IPAM, so we don't need to mess with
docker networking at all.  Don't kill docker0 anymore on
openshift-sdn startup.
@@ -308,14 +308,6 @@ func (plugin *OsdnNode) SetupSDN() (bool, error) {
return false, err
}
- // Clean up docker0 since docker won't
- itx = ipcmd.NewTransaction(exec, "docker0")
- itx.SetLink("down")
- itx.IgnoreError()
- itx.DeleteLink()
- itx.IgnoreError()
- _ = itx.EndTransaction()
-
sysctl := sysctl.New()
// Enable IP forwarding for ipv4 packets
