wifi: rsi: rsi_91x_debugfs: Remove unnecessary (void*) conversions

No need cast (void*) to (struct rsi_91x_sdiodev *).
Signed-off-by: Wu Yunchuan <yunchuan@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230803073455.3666306-1-yunchuan@nfschina.com

drivers/net/wireless/rsi/rsi_91x_debugfs.c

@@ -28,8 +28,7 @@ static int rsi_sdio_stats_read(struct seq_file *seq, void *data)
 {
 	struct rsi_common *common = seq->private;
 	struct rsi_hw *adapter = common->priv;
-	struct rsi_91x_sdiodev *dev =
-		(struct rsi_91x_sdiodev *)adapter->rsi_dev;
+	struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
 
 	seq_printf(seq, "total_sdio_interrupts: %d\n",
 		   dev->rx_info.sdio_int_counter);