ONOS-3156 Fixed mysterious execution of Secure-SSH stc step. Doh!

Change-Id: Ia3d4829bf80169861d428a9c8e9fd8d524ff3425
diff --git a/tools/test/bin/stc b/tools/test/bin/stc
index f1a5407..e2225c9 100755
--- a/tools/test/bin/stc
+++ b/tools/test/bin/stc
@@ -22,14 +22,7 @@
 [ -t 1 ] && interactive=true || interactive=false
 [ -t 1 ] && notInteractive=false || notInteractive=true
 
-# stc requires that ONOS_USE_SSH=true, but we will store the old value and reset it after
-sshSet=$([ -z ${ONOS_USE_SSH+x} ]) && oldSSH=$ONOS_USE_SSH
-export ONOS_USE_SSH=true
-
 # Run stc
 [ -z "$stcDebug" ] && DEBUG_OPTS=""
 stcColor=${stcColor:-$interactive} stcDumpLogs=${stcDumpLogs:-$notInteractive} \
     java $DEBUG_OPTS -jar $JAR $scenario "$@"
-
-# Reset the old value of ONOS_USE_SSH
-[ $sshSet ] && export ONOS_USE_SSH=oldSSH || unset ONOS_USE_SSH