ath9k_hw: simplify spur channel handling

Remove ah->config.spurmode and ah->config.spurchans, always use EEPROM
data.

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_9287.c b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
index e1d0c21..5ba1385 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
@@ -1004,31 +1004,7 @@
 static u16 ath9k_hw_ar9287_get_spur_channel(struct ath_hw *ah,
 					    u16 i, bool is2GHz)
 {
-#define EEP_MAP9287_SPURCHAN \
-	(ah->eeprom.map9287.modalHeader.spurChans[i].spurChan)
-
-	struct ath_common *common = ath9k_hw_common(ah);
-	u16 spur_val = AR_NO_SPUR;
-
-	ath_dbg(common, ANI, "Getting spur idx:%d is2Ghz:%d val:%x\n",
-		i, is2GHz, ah->config.spurchans[i][is2GHz]);
-
-	switch (ah->config.spurmode) {
-	case SPUR_DISABLE:
-		break;
-	case SPUR_ENABLE_IOCTL:
-		spur_val = ah->config.spurchans[i][is2GHz];
-		ath_dbg(common, ANI, "Getting spur val from new loc. %d\n",
-			spur_val);
-		break;
-	case SPUR_ENABLE_EEPROM:
-		spur_val = EEP_MAP9287_SPURCHAN;
-		break;
-	}
-
-	return spur_val;
-
-#undef EEP_MAP9287_SPURCHAN
+	return ah->eeprom.map9287.modalHeader.spurChans[i].spurChan;
 }
 
 const struct eeprom_ops eep_ar9287_ops = {