wifi: rsi: rsi_91x_hal: Remove unnecessary conversions

No need cast (struct rsi_hw *) to (struct rsi_hw *).
Signed-off-by: Wu Yunchuan <yunchuan@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230803073507.3666471-1-yunchuan@nfschina.com

drivers/net/wireless/rsi/rsi_91x_hal.c

@@ -424,7 +424,7 @@ int rsi_send_bt_pkt(struct rsi_common *common, struct sk_buff *skb)
 
 int rsi_prepare_beacon(struct rsi_common *common, struct sk_buff *skb)
 {
-	struct rsi_hw *adapter = (struct rsi_hw *)common->priv;
+	struct rsi_hw *adapter = common->priv;
 	struct rsi_data_desc *bcn_frm;
 	struct ieee80211_hw *hw = common->priv->hw;
 	struct ieee80211_conf *conf = &hw->conf;