onos-push-topos : make sure topos/* files owned by ONOS_USER, before trying to copy over them.

Change-Id: Ie16f40360436f27750a512baf8322568939c6f7e
diff --git a/tools/test/bin/onos-push-topos b/tools/test/bin/onos-push-topos
index a09d744..ba96e50 100755
--- a/tools/test/bin/onos-push-topos
+++ b/tools/test/bin/onos-push-topos
@@ -8,4 +8,5 @@
 
 node=${1:-$OCN}
 
+ssh $ONOS_USER@$node sudo rm -f topos/*.pyc
 scp -qr $ONOS_ROOT/tools/test/topos $ONOS_USER@$node: