Removed -q option.

-q was valid option only on BSD family.

Change-Id: I099204d1641643cece82141b59385e90b34c8350
diff --git a/onos.sh b/onos.sh
index c4965ef..045289b 100755
--- a/onos.sh
+++ b/onos.sh
@@ -621,7 +621,7 @@
   # TODO Assuming 1sec is enough. To be sure monitor log?
   sleep 1
   # Silently kill coordinator
-  (pkill -q -f ${RAMCLOUD_HOME}/obj.${RAMCLOUD_BRANCH}/coordinator &> /dev/null)
+  (pkill -f ${RAMCLOUD_HOME}/obj.${RAMCLOUD_BRANCH}/coordinator &> /dev/null)
 
   echo "DONE"
 }