rt2x00: Rename driver write_tx_datadesc callback function.

Now that the {usb,pci} specific write_tx_data functions are no longer
present we can rename the write_tx_datadesc callback function back to
its old name.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index e7acc6a..788b0e4 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -550,10 +550,8 @@
 	void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev,
 			       struct sk_buff *skb,
 			       struct txentry_desc *txdesc);
-	int (*write_tx_data) (struct queue_entry *entry,
-			      struct txentry_desc *txdesc);
-	void (*write_tx_datadesc) (struct queue_entry *entry,
-				   struct txentry_desc *txdesc);
+	void (*write_tx_data) (struct queue_entry *entry,
+			       struct txentry_desc *txdesc);
 	void (*write_beacon) (struct queue_entry *entry,
 			      struct txentry_desc *txdesc);
 	int (*get_tx_data_len) (struct queue_entry *entry);