ath9k: remove ath9k_regd_get_rd()

The function ath9k_regd_get_rd() is unused.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath9k/regd.c

@@ -117,11 +117,6 @@ static u16 ath9k_regd_get_eepromRD(struct ath_hw *ah)
 	return ah->regulatory.current_rd & ~WORLDWIDE_ROAMING_FLAG;
 }
 
-u16 ath9k_regd_get_rd(struct ath_hw *ah)
-{
-	return ath9k_regd_get_eepromRD(ah);
-}
-
 bool ath9k_is_world_regd(struct ath_hw *ah)
 {
 	return is_wwr_sku(ath9k_regd_get_eepromRD(ah));

drivers/net/wireless/ath9k/regd.h

@@ -233,7 +233,6 @@ enum CountryCode {
 	CTRY_BELGIUM2 = 5002
 };
 
-u16 ath9k_regd_get_rd(struct ath_hw *ah);
 bool ath9k_is_world_regd(struct ath_hw *ah);
 const struct ieee80211_regdomain *ath9k_world_regdomain(struct ath_hw *ah);
 const struct ieee80211_regdomain *ath9k_default_world_regdomain(void);