ath9k_hw: remove ath9k_hw_getdefantenna

The default antenna (as programmed by the INI file) is always 0 anyway.

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/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index d3df943..b92cf01 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2569,12 +2569,6 @@
 }
 EXPORT_SYMBOL(ath9k_hw_set_gpio);
 
-u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
-{
-	return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
-}
-EXPORT_SYMBOL(ath9k_hw_getdefantenna);
-
 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
 {
 	REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 7ce60fb..5036f95 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -934,7 +934,6 @@
 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
 			 u32 ah_signal_type);
 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val);
-u32 ath9k_hw_getdefantenna(struct ath_hw *ah);
 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna);
 
 /* General Operation */
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 2708d1f..8cb3742 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -488,7 +488,6 @@
 	setup_timer(&common->ani.timer, ath_ani_calibrate, (unsigned long)sc);
 
 	sc->config.txpowlimit = ATH_TXPOWER_MAX;
-	sc->rx.defant = ath9k_hw_getdefantenna(sc->sc_ah);
 	memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
 	sc->beacon.slottime = ATH9K_SLOT_TIME_9;