ath9k_hw: remove antenna configuration eeprom ops and variables

AR9280 based hardware with 3 antennas and slow antenna diversity has
not been seen in the wild and ath9k does not support that form of
antenna diversity, so remove the EEPROM ops for it.
These EEPROM ops are currently only used for setting the
AR_PHY_SWITCH_COM register, which is being done in the EEPROM specific
file already.

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/eeprom_def.c b/drivers/net/wireless/ath/ath9k/eeprom_def.c
index ad3e234..088f141 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_def.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c
@@ -374,8 +374,7 @@
 	pModal = &(eep->modalHeader[IS_CHAN_2GHZ(chan)]);
 	txRxAttenLocal = IS_CHAN_2GHZ(chan) ? 23 : 44;
 
-	REG_WRITE(ah, AR_PHY_SWITCH_COM,
-		  ah->eep_ops->get_eeprom_antenna_cfg(ah, chan));
+	REG_WRITE(ah, AR_PHY_SWITCH_COM, pModal->antCtrlCommon & 0xffff);
 
 	for (i = 0; i < AR5416_MAX_CHAINS; i++) {
 		if (AR_SREV_9280(ah)) {
@@ -1264,34 +1263,6 @@
 		  | ATH9K_POW_SM(pModal->pwrDecreaseFor2Chain, 0));
 }
 
-static u8 ath9k_hw_def_get_num_ant_config(struct ath_hw *ah,
-					  enum ath9k_hal_freq_band freq_band)
-{
-	struct ar5416_eeprom_def *eep = &ah->eeprom.def;
-	struct modal_eep_header *pModal =
-		&(eep->modalHeader[freq_band]);
-	struct base_eep_header *pBase = &eep->baseEepHeader;
-	u8 num_ant_config;
-
-	num_ant_config = 1;
-
-	if (pBase->version >= 0x0E0D &&
-	    (pModal->lna_ctl & LNA_CTL_USE_ANT1))
-		num_ant_config += 1;
-
-	return num_ant_config;
-}
-
-static u32 ath9k_hw_def_get_eeprom_antenna_cfg(struct ath_hw *ah,
-					       struct ath9k_channel *chan)
-{
-	struct ar5416_eeprom_def *eep = &ah->eeprom.def;
-	struct modal_eep_header *pModal =
-		&(eep->modalHeader[IS_CHAN_2GHZ(chan)]);
-
-	return pModal->antCtrlCommon;
-}
-
 static u16 ath9k_hw_def_get_spur_channel(struct ath_hw *ah, u16 i, bool is2GHz)
 {
 #define EEP_DEF_SPURCHAN \
@@ -1328,8 +1299,6 @@
 	.fill_eeprom		= ath9k_hw_def_fill_eeprom,
 	.get_eeprom_ver		= ath9k_hw_def_get_eeprom_ver,
 	.get_eeprom_rev		= ath9k_hw_def_get_eeprom_rev,
-	.get_num_ant_config	= ath9k_hw_def_get_num_ant_config,
-	.get_eeprom_antenna_cfg	= ath9k_hw_def_get_eeprom_antenna_cfg,
 	.set_board_values	= ath9k_hw_def_set_board_values,
 	.set_addac		= ath9k_hw_def_set_addac,
 	.set_txpower		= ath9k_hw_def_set_txpower,