[VOL-3093] remove ONU reboot from voltha-2.3 due BAL3.4

Change-Id: I8f9468f64652d69e16ca7b4741dd5c7123a517d5
diff --git a/tests/functional/Voltha_FailureScenarios.robot b/tests/functional/Voltha_FailureScenarios.robot
index 70ba225..146a0c1 100644
--- a/tests/functional/Voltha_FailureScenarios.robot
+++ b/tests/functional/Voltha_FailureScenarios.robot
@@ -62,7 +62,7 @@
     ...    Test case runs only on the PODs that are configured with PowerSwitch that
     ...    controls the power off/on ONUs/OLT remotely (simulating a physical reboot)
     ...    VOL-2634
-    [Tags]    functional   PowerSwitch
+    [Tags]    functional   PowerSwitch    notready
     [Setup]    Run Keywords    Announce Message    START TEST ONUreboot_PowerSwitch
     ...        AND             Start Logging    ONUreboot_PowerSwitch
     [Teardown]    Run Keywords    Collect Logs