Revert "Added exitonfailure flag as input to robot command for physical pod jobs"

This reverts commit 5bf5f2065a0a021d75e5abcc1d5b0bb95c497673.

Reason for revert: need to verify all tests

Change-Id: Ic08b9f89ce6e75c79de92dabd950f2f1c00874c3
diff --git a/jjb/voltha-test/voltha-nightly-jobs.yaml b/jjb/voltha-test/voltha-nightly-jobs.yaml
index 1d11c4c..bc70d30 100644
--- a/jjb/voltha-test/voltha-nightly-jobs.yaml
+++ b/jjb/voltha-test/voltha-nightly-jobs.yaml
@@ -304,7 +304,7 @@
 
     oltAdapterAppLabel: 'adapter-open-olt'
     enableMultiUni: false
-    timeout: 270
+    timeout: 240
 
     parameters:
       - string: