ath9k: minor cleanup in ani

removed a function declaration, removed a variable, renamed a variable

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h
index dbab5b9..a547005 100644
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -148,8 +148,7 @@
 	u32 ast_ani_ofdmerrs;
 	u32 ast_ani_cckerrs;
 	u32 ast_ani_reset;
-	u32 ast_ani_lzero;
-	u32 ast_ani_lneg;
+	u32 ast_ani_lneg_or_lzero;
 	u32 avgbrssi;
 	struct ath9k_mib_stats ast_mibstats;
 };
@@ -159,7 +158,5 @@
 void ath9k_hw_disable_mib_counters(struct ath_hw *ah);
 void ath9k_hw_ani_setup(struct ath_hw *ah);
 void ath9k_hw_ani_init(struct ath_hw *ah);
-int ath9k_hw_get_ani_channel_idx(struct ath_hw *ah,
-				 struct ath9k_channel *chan);
 
 #endif /* ANI_H */