wifi: mt76: mt7996: remove unused eeprom band selection

Tri-band chipsets support one band on each a-die, so remove the unused
definition of eeprom band selection.
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7996/eeprom.c

@@ -138,10 +138,6 @@ static int mt7996_eeprom_parse_band_config(struct mt7996_phy *phy)
 	case MT_EE_BAND_SEL_6GHZ:
 		phy->mt76->cap.has_6ghz = true;
 		break;
-	case MT_EE_BAND_SEL_5GHZ_6GHZ:
-		phy->mt76->cap.has_5ghz = true;
-		phy->mt76->cap.has_6ghz = true;
-		break;
 	default:
 		ret = -EINVAL;
 		break;

drivers/net/wireless/mediatek/mt76/mt7996/eeprom.h

@@ -46,7 +46,6 @@ enum mt7996_eeprom_band {
 	MT_EE_BAND_SEL_2GHZ,
 	MT_EE_BAND_SEL_5GHZ,
 	MT_EE_BAND_SEL_6GHZ,
-	MT_EE_BAND_SEL_5GHZ_6GHZ,
 };
 
 static inline int