[VOL-4267] Minor modifications to voltha comp restart scenarios while continuous ping in background for DT,
also marked the same TCs to notready till ping in background issue is resolved for lxc containers.
Additionally, deleted Voltha_failureScenarios2 unused robot file.

Change-Id: I6b42d8a8fad505fcd4c12eb02a83d9fab03ba2fe
diff --git a/tests/dt-workflow/Voltha_DT_FailureScenarios.robot b/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
index 6020929..5233544 100755
--- a/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
+++ b/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
@@ -562,7 +562,7 @@
     [Documentation]    Restart openonu-adapter container after VOLTHA is operational.
     ...    Run the ping continuously in background during container restart,
     ...    and verify that there should be no affect on the dataplane.
-    [Tags]    functionalDt   RestartOpenOnuPingDt    non-critical
+    [Tags]    functionalDt    RestartOpenOnuPingDt    non-critical    notready
     [Setup]    Start Logging    RestartOpenOnuPingDt
     [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
     ...           AND             Stop Logging    RestartOpenOnuPingDt
@@ -595,11 +595,15 @@
     FOR    ${I}    IN RANGE    0    ${num_all_onus}
         ${src}=    Set Variable    ${hosts.src[${I}]}
         ${dst}=    Set Variable    ${hosts.dst[${I}]}
-        ${ping_output_file}=    Set Variable    /tmp/${src['onu']}_ping
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
         ...    Wait Until Keyword Succeeds    60s    2s
         ...    Stop Ping Running In Background    ${src['ip']}    ${src['user']}    ${src['pass']}
         ...    ${src['container_type']}    ${src['container_name']}
+    END
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${ping_output_file}=    Set Variable    /tmp/${src['onu']}_ping
         ${ping_output}=    Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
         ...    Wait Until Keyword Succeeds    60s    2s
         ...    Retrieve Remote File Contents    ${ping_output_file}    ${src['ip']}    ${src['user']}    ${src['pass']}
@@ -611,7 +615,7 @@
     [Documentation]    Restart openolt-adapter container after VOLTHA is operational.
     ...    Run the ping continuously in background during container restart,
     ...    and verify that there should be no affect on the dataplane.
-    [Tags]    functionalDt   RestartOpenOltPingDt    non-critical
+    [Tags]    functionalDt    RestartOpenOltPingDt    non-critical    notready
     [Setup]    Start Logging    RestartOpenOltPingDt
     [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
     ...           AND             Stop Logging    RestartOpenOltPingDt
@@ -644,11 +648,15 @@
     FOR    ${I}    IN RANGE    0    ${num_all_onus}
         ${src}=    Set Variable    ${hosts.src[${I}]}
         ${dst}=    Set Variable    ${hosts.dst[${I}]}
-        ${ping_output_file}=    Set Variable    /tmp/${src['onu']}_ping
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
         ...    Wait Until Keyword Succeeds    60s    2s
         ...    Stop Ping Running In Background    ${src['ip']}    ${src['user']}    ${src['pass']}
         ...    ${src['container_type']}    ${src['container_name']}
+    END
+    FOR    ${I}    IN RANGE    0    ${num_all_onus}
+        ${src}=    Set Variable    ${hosts.src[${I}]}
+        ${dst}=    Set Variable    ${hosts.dst[${I}]}
+        ${ping_output_file}=    Set Variable    /tmp/${src['onu']}_ping
         ${ping_output}=    Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure
         ...    Wait Until Keyword Succeeds    60s    2s
         ...    Retrieve Remote File Contents    ${ping_output_file}    ${src['ip']}    ${src['user']}    ${src['pass']}