Flow expiry: Remove all references to OFPC_SEND_FLOW_EXP

lib/learning-switch.c

@@ -347,7 +347,7 @@ send_features_request(struct lswitch *sw, struct rconn *rconn)
 
         /* Send OFPT_SET_CONFIG. */
         osc = make_openflow(sizeof *osc, OFPT_SET_CONFIG, &b);
-        osc->flags = htons(OFPC_SEND_FLOW_EXP);
+        osc->flags = 0;
         osc->miss_send_len = htons(OFP_DEFAULT_MISS_SEND_LEN);
         queue_tx(sw, rconn, b);
 

lib/ofp-print.c

@@ -589,10 +589,6 @@ ofp_print_switch_config(struct ds *string, const void *oh, size_t len UNUSED,
     uint16_t flags;
 
     flags = ntohs(osc->flags);
-    if (flags & OFPC_SEND_FLOW_EXP) {
-        flags &= ~OFPC_SEND_FLOW_EXP;
-        ds_put_format(string, " (sending flow expirations)");
-    }
     if (flags) {
         ds_put_format(string, " ***unknown flags 0x%04"PRIx16"***", flags);
     }