mt76: mt76x02: remove check in mt76x02_mcu_msg_send

mt76x02_mcu_msg_send is run just by mmio code so get rid of
mt76_is_mmio() check

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c

@@ -20,7 +20,7 @@ int mt76x02_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
 	int ret;
 	u8 seq;
 
-	if (mt76_is_mmio(&dev->mt76) && dev->mcu_timeout)
+	if (dev->mcu_timeout)
 		return -EIO;
 
 	skb = mt76_mcu_msg_alloc(mdev, data, len);