BgpRouter: Added treatment to delete flows

Deleting routes now works.

Change-Id: I7ed682474e571aa2f402a1762a2037190c2d9284
diff --git a/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/FlowModBuilderVer13.java b/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/FlowModBuilderVer13.java
index cf4f490..dc6a857 100644
--- a/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/FlowModBuilderVer13.java
+++ b/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/FlowModBuilderVer13.java
@@ -180,6 +180,7 @@
                 .setMatch(match)
                 .setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM))
                 .setPriority(flowRule().priority())
+                .setTableId(TableId.of(flowRule().type().ordinal()))
                 .build();
 
         return fm;