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/package/bin/onos-secure-ssh b/tools/package/bin/onos-secure-ssh
index eab5d7a..fba3a03 100755
--- a/tools/package/bin/onos-secure-ssh
+++ b/tools/package/bin/onos-secure-ssh
@@ -1,40 +1,3 @@
 #!/bin/bash
-# -----------------------------------------------------------------------------
-# Enables secure access to ONOS console by removing default users & keys.
-# -----------------------------------------------------------------------------
-
-# Remove the "unsecure" shell client which uses karaf "client" which is used
-# by default; we will install the "secure" client that just uses raw ssh later.
-rm -f $(dirname $0)/onos
-
-set -e
-
-# Scan arguments for user/password or other options...
-while getopts u:p: o; do
-    case "$o" in
-        u) user=$OPTARG;;
-        p) password=$OPTARG;;
-    esac
-done
-password=${password:-$user} # password defaults to the user if not specified
-let OPC=$OPTIND-1
-shift $OPC
-
-cd $(dirname $0)/../apache-karaf-*/etc
-USERS=users.properties
-KEYS=keys.properties
-
-# Remove the built-in users and keys to secure the access implicitly.
-egrep -v "^(karaf|onos)[ ]*=" $USERS > $USERS.new && mv $USERS.new $USERS
-egrep -v "^(#karaf|onos)[ ]*=" $KEYS > $KEYS.new && mv $KEYS.new $KEYS
-
-# Remove any previous known keys for the local host.
-ssh-keygen -f "$HOME/.ssh/known_hosts" -R [localhost]:8101
-
-# Swap the onos client to use the SSH variant.
-ln -s $(dirname $0)/onos-ssh $(dirname $0)/onos
-
-# If user and password options were given, setup the user/password.
-if [ -n "$user" -a -n "$password" ]; then
-    echo "$user = $password,_g_:admingroup" >> $USERS
-fi
\ No newline at end of file
+echo "This command has been deprecated!"
+echo "Please use 'onos-user-key' and 'onos-user-password' commands instead."
\ No newline at end of file