Eliminating use of Apache Karaf CLI client and of ONOS_USE_SSH env. variable.

All CLI access is now through the raw SSH client.
To enable passwordless access, the 'onos-user-key' tool should be used to add user keys.
Added 'onos-user-password' tool in the similar vein and usage as the 'onos-user-key' tool.

Change-Id: Ic5482fc8012369edc818691402ba45d13f130452
diff --git a/tools/test/bin/onos-check-node-status b/tools/test/bin/onos-check-node-status
index ba86703..39628b8 100755
--- a/tools/test/bin/onos-check-node-status
+++ b/tools/test/bin/onos-check-node-status
@@ -7,7 +7,7 @@
 trap "rm -f $aux 2>/dev/null" EXIT
 
 for attempt in {1..10}; do
-    onos ${1:-$OCI} "onos:nodes" | grep -v /bin/client > $aux
+    onos ${1:-$OCI} "onos:nodes" > $aux
     cat $aux
 
     # Normalize the node status