removing '-nw' from ponsim rg dhclient request

Change-Id: Ieb4fc85e6b87f3eaf68355376b0a91ea830c0fbb
diff --git a/src/test/cord-api/Framework/Subscriber.robot b/src/test/cord-api/Framework/Subscriber.robot
index 143a97e..17d8b5e 100644
--- a/src/test/cord-api/Framework/Subscriber.robot
+++ b/src/test/cord-api/Framework/Subscriber.robot
@@ -122,9 +122,9 @@
 
 Send Dhclient Request K8S
     ${RG_CONTAINER}=    Wait Until Keyword Succeeds    60s    1s    Run    kubectl -n voltha get pod|grep "^rg-"|cut -d' ' -f1
-    Run    kubectl -n voltha exec ${RG_CONTAINER} -- dhclient -nw
-    Run    kubectl -n voltha exec ${RG_CONTAINER} -- dhclient -nw -r
-    Run    kubectl -n voltha exec ${RG_CONTAINER} -- dhclient -nw
+    Run    kubectl -n voltha exec ${RG_CONTAINER} -- dhclient
+    Run    kubectl -n voltha exec ${RG_CONTAINER} -- dhclient -r
+    Run    kubectl -n voltha exec ${RG_CONTAINER} -- dhclient
 
 Validate Subscriber Service Chain
     [Arguments]    ${serial_no}    ${expected}=True