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

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

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failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

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failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:41:16

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:47:11

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:40:23

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

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failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:30

failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:17

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

00:45:23

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

08:46:28

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

00:44:58

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:49:27

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:37:44

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:52:43

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:36:27

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:51:43

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:27

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:11

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

14:05:33