wifi: mt76: mt76_usb.mt76u_mcu.burst is always false remove related code

Simplify mt76x02u_multiple_mcu_reads routine since burst is always
false.
Signed-off-by: Gergo Koteles <soyer@irl.hu>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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

@@ -527,7 +527,6 @@ struct mt76_usb {
 		struct mt76_reg_pair *rp;
 		int rp_len;
 		u32 base;
-		bool burst;
 	} mcu;
 };
 

drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c

@@ -21,29 +21,16 @@ static void
 mt76x02u_multiple_mcu_reads(struct mt76_dev *dev, u8 *data, int len)
 {
 	struct mt76_usb *usb = &dev->usb;
-	u32 reg, val;
 	int i;
 
-	if (usb->mcu.burst) {
-		WARN_ON_ONCE(len / 4 != usb->mcu.rp_len);
-
-		reg = usb->mcu.rp[0].reg - usb->mcu.base;
-		for (i = 0; i < usb->mcu.rp_len; i++) {
-			val = get_unaligned_le32(data + 4 * i);
-			usb->mcu.rp[i].reg = reg++;
-			usb->mcu.rp[i].value = val;
-		}
-	} else {
-		WARN_ON_ONCE(len / 8 != usb->mcu.rp_len);
-
-		for (i = 0; i < usb->mcu.rp_len; i++) {
-			reg = get_unaligned_le32(data + 8 * i) -
-			      usb->mcu.base;
-			val = get_unaligned_le32(data + 8 * i + 4);
-
-			WARN_ON_ONCE(usb->mcu.rp[i].reg != reg);
-			usb->mcu.rp[i].value = val;
-		}
+	WARN_ON_ONCE(len / 8 != usb->mcu.rp_len);
+
+	for (i = 0; i < usb->mcu.rp_len; i++) {
+		u32 reg = get_unaligned_le32(data + 8 * i) - usb->mcu.base;
+		u32 val = get_unaligned_le32(data + 8 * i + 4);
+
+		WARN_ON_ONCE(usb->mcu.rp[i].reg != reg);
+		usb->mcu.rp[i].value = val;
 	}
 }
 
@@ -207,7 +194,6 @@ mt76x02u_mcu_rd_rp(struct mt76_dev *dev, u32 base,
 	usb->mcu.rp = data;
 	usb->mcu.rp_len = n;
 	usb->mcu.base = base;
-	usb->mcu.burst = false;
 
 	ret = __mt76x02u_mcu_send_msg(dev, skb, CMD_RANDOM_READ, true);