wifi: iwlegacy: Remove the unused variable len

Variable len is not effectively used, so delete it.

drivers/net/wireless/intel/iwlegacy/4965-mac.c:4234:7: warning: variable 'len' set but not used.

Reported-by: Abaci Robot <[email protected]>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7223
Signed-off-by: Jiapeng Chong <[email protected]>
Acked-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: Jiapeng Chong

drivers/net/wireless/intel/iwlegacy/4965-mac.c

@@ -4231,8 +4231,6 @@ il4965_rx_handle(struct il_priv *il)
 		fill_rx = 1;
 
 	while (i != r) {
-		int len;
-
 		rxb = rxq->queue[i];
 
 		/* If an RXB doesn't have a Rx queue slot associated with it,
@@ -4246,10 +4244,6 @@ il4965_rx_handle(struct il_priv *il)
 			       PAGE_SIZE << il->hw_params.rx_page_order,
 			       DMA_FROM_DEVICE);
 		pkt = rxb_addr(rxb);
-
-		len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK;
-		len += sizeof(u32);	/* account for status word */
-
 		reclaim = il_need_reclaim(il, pkt);
 
 		/* Based on type of command response or notification,