netdev: Remove EOPNOTSUPP related comment for netdev_send().
Since the caller must make sure that 'netdev' supports
sending. This mentioned at the start of the comment.
Fixes: ("dpif-netdev: Don't try to output on a device without txqs.")
@@ -784,10 +784,7 @@ netdev_get_pt_mode(const struct netdev *netdev)
* transmission queues, so that the caller does not ordinarily have to
* do additional queuing of packets. 'qid' specifies the queue to use
* and can be ignored if the implementation does not support multiple
- * queues.
- *
- * Some network devices may not implement support for this function. In such
- * cases this function will always return EOPNOTSUPP. */
+ * queues. */
int
netdev_send(struct netdev *netdev, int qid, struct dp_packet_batch *batch,
bool may_steal, bool concurrent_txq)
