ath9k: More unused macros

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h
index 9976406..82e71f9 100644
--- a/drivers/net/wireless/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath9k/ath9k.h
@@ -634,11 +634,6 @@
 	ATH9K_PM_UNDEFINED
 };
 
-#define HAL_ANTENNA_MIN_MODE  0
-#define HAL_ANTENNA_FIXED_A   1
-#define HAL_ANTENNA_FIXED_B   2
-#define HAL_ANTENNA_MAX_MODE  3
-
 struct ath9k_mib_stats {
 	u32 ackrcv_bad;
 	u32 rts_bad;
@@ -696,7 +691,6 @@
 	PHY_FH,
 	PHY_OFDM,
 	PHY_HT,
-	PHY_MAX
 };
 #define PHY_CCK PHY_DS