In Flowventhandler dont fall through for delete flow.
In Flowventhandler dont fall through for delete flow.

This was resulting in overriding of table sent in flow event for delete flow.

(cherry picked from commit 028171043e2114e8811b8b0cc86a69b1d7f54eef)
Closes-bug: 1538680
Change-Id: Id161b95995d79ed7040931ab0a1cfe0bf6903299

tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller