temporarily removing tests from nightly jobs, to investigate issues

Change-Id: I5742e3a4bbc1daa6915cd735f1554f22225072fe
diff --git a/tests/functional/Voltha_FailureScenarios.robot b/tests/functional/Voltha_FailureScenarios.robot
index 829efb8..988960c 100644
--- a/tests/functional/Voltha_FailureScenarios.robot
+++ b/tests/functional/Voltha_FailureScenarios.robot
@@ -110,7 +110,7 @@
     ...    Prerequisite : Subscriber are authenticated/DHCP/pingable state
     ...    Test performs a physical reboot, performs "reboot" from the OLT CLI
     ...    VOL-1956
-    [Tags]    functional   PhysicalOLTReboot
+    [Tags]    functional   PhysicalOLTReboot   notready
     [Setup]    Run Keywords    Announce Message    START TEST PhysicalOLTReboot
     ...        AND             Start Logging    PhysicalOLTReboot
     [Teardown]    Run Keywords    Collect Logs
@@ -358,7 +358,7 @@
     [Documentation]    Restart ofagent container after VOLTHA is operational.
     ...    Prerequisite : ONUs are authenticated and pingable.
     #TODO: remove "notready" tag once olt reboot and ofagent restart work items are done
-    [Tags]    functional   VOL-2409   ofagentRestart
+    [Tags]    functional   VOL-2409   ofagentRestart    notready
     [Setup]    Run Keywords    Announce Message    START TEST ofagentRestart
     ...        AND             Start Logging    ofagentRestart
     [Teardown]    Run Keywords    Collect Logs