mwl8k: revert unnecessary modification of tx descriptor

This reverts change 783391c443728febc669e40597193308460e7b4f.
The stabilized AP v1 firmware uses the same tx descriptor as
the STA firmware.
Signed-off-by: Brian Cavagnolo <brian@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwl8k.c

@@ -1125,12 +1125,10 @@ struct mwl8k_tx_desc {
 	__le32 reserved;
 	__le16 rate_info;
 	__u8 peer_id;
-	__u8 xmitcontrol;
+	__u8 tx_frag_cnt;
 } __packed;
 
 #define MWL8K_TX_DESCS		128
-#define MWL8K_XMITCONTROL_NON_AMPDU	0x04
-
 
 static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
 {
@@ -1450,9 +1448,6 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
 		tx->peer_id = MWL8K_STA(tx_info->control.sta)->peer_id;
 	else
 		tx->peer_id = 0;
-
-	if (priv->ap_fw)
-		tx->xmitcontrol = MWL8K_XMITCONTROL_NON_AMPDU;
 	wmb();
 	tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);