Marking some old developer tools as deprecated; wil be removed after Falcon release.

Adding a teardown STC scenario.

Change-Id: Ifb0d5ce0546f072f46485266e5247cb49a39db1c
diff --git a/tools/build/onos-test b/tools/build/onos-test
index c681961..1391a5b 100755
--- a/tools/build/onos-test
+++ b/tools/build/onos-test
@@ -3,6 +3,9 @@
 # Launches the ONOS tests on the current cell environment.
 # -----------------------------------------------------------------------------
 
+echo "This command has been deprecated and will be removed after Falcon release"
+echo "Please use the 'stc setup' command instead"
+
 set -e
 
 [ ! -d "$ONOS_ROOT" ] && echo "ONOS_ROOT is not defined" >&2 && exit 1