wifi: rsi: rsi_91x_mac80211: Remove unnecessary conversions

No need cast (struct rsi_hw *) to (struct rsi_hw *),
or cast (struct rsi_common *) to (struct rsi_common *).
Signed-off-by: Wu Yunchuan <yunchuan@nfschina.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230803073517.3666559-1-yunchuan@nfschina.com

drivers/net/wireless/rsi/rsi_91x_mac80211.c

@@ -1763,8 +1763,8 @@ static int rsi_mac80211_roc(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			    struct ieee80211_channel *chan, int duration,
 			    enum ieee80211_roc_type type)
 {
-	struct rsi_hw *adapter = (struct rsi_hw *)hw->priv;
-	struct rsi_common *common = (struct rsi_common *)adapter->priv;
+	struct rsi_hw *adapter = hw->priv;
+	struct rsi_common *common = adapter->priv;
 	int status = 0;
 
 	rsi_dbg(INFO_ZONE, "***** Remain on channel *****\n");