ath9k: remove duplicate WMM AC definitions

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 3c65c91..7559fb2b 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -577,13 +577,8 @@
 
 #define	ATH9K_NUM_TX_QUEUES 10
 
-enum ath9k_tx_queue_subtype {
-	ATH9K_WME_AC_BK = 0,
-	ATH9K_WME_AC_BE,
-	ATH9K_WME_AC_VI,
-	ATH9K_WME_AC_VO,
-	ATH9K_WME_UPSD
-};
+/* Used as a queue subtype instead of a WMM AC */
+#define ATH9K_WME_UPSD	4
 
 enum ath9k_tx_queue_flags {
 	TXQ_FLAG_TXOKINT_ENABLE = 0x0001,
@@ -617,7 +612,7 @@
 struct ath9k_tx_queue_info {
 	u32 tqi_ver;
 	enum ath9k_tx_queue tqi_type;
-	enum ath9k_tx_queue_subtype tqi_subtype;
+	int tqi_subtype;
 	enum ath9k_tx_queue_flags tqi_qflags;
 	u32 tqi_priority;
 	u32 tqi_aifs;