playbook/ors: remove masquerade for IPv6

It is not necessary for phones as re6st will
handle the routing. Adding masquerade interferes
with re6st routing.
24 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
failed ERP5.StandaloneDeploymentScriptTest-Debian.Bulleseye.JEROME

15:02:22

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:43:30

failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:34

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

00:47:06

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:37:46

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:08:35

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:49:49

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:52:19

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:40:23

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:41:16

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:47:11

failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:17

failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:30

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

00:44:58

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

00:45:23

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

08:46:28

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:52:43

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:51:43

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:36:27

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:37:44

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:49:27

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:11

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

14:05:33

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:27