rt2x00: Remove ieee80211_tx_control argument from write_tx_desc()

Move the last remaining information details read from ieee80211_tx_control
in the drivers to the txentry_desc structure. After this we can
remove ieee80211_tx_control from the argument list for the callback function,
which makes it easier when the control information is moved into skb->cb

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 79bd9c9..6561484 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -540,8 +540,7 @@
 	 */
 	void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev,
 			       struct sk_buff *skb,
-			       struct txentry_desc *txdesc,
-			       struct ieee80211_tx_control *control);
+			       struct txentry_desc *txdesc);
 	int (*write_tx_data) (struct rt2x00_dev *rt2x00dev,
 			      struct data_queue *queue, struct sk_buff *skb,
 			      struct ieee80211_tx_control *control);