Remove pgrep display, command will fail w/o a suffix of || true

Change-Id: Id80a460bb3bf7d50b73de5f3ef5df4675e162321
diff --git a/vars/setOnosLogLevels.groovy b/vars/setOnosLogLevels.groovy
index a50cbb1..a24b029 100644
--- a/vars/setOnosLogLevels.groovy
+++ b/vars/setOnosLogLevels.groovy
@@ -37,8 +37,6 @@
         """
       }
       sh """
-        pgrep --list-full port-forw
-
         ps e -ww -A | grep _TAG="onos-pf" | grep -v grep | awk '{print \$1}' | xargs --no-run-if-empty kill -9
         ps aux | grep port-forward
       """