rtlwifi: btcoex: remove set but not used variable 'ppsc'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c: In function 'halbtc_leave_lps':
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:295:21: warning:
 variable 'ppsc' set but not used [-Wunused-but-set-variable]

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c: In function 'halbtc_enter_lps':
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:318:21: warning:
 variable 'ppsc' set but not used [-Wunused-but-set-variable]

It never used since introduction in
commit aa45a673 ("rtlwifi: btcoexist: Add new mini driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c

@@ -292,11 +292,9 @@ bool halbtc_send_bt_mp_operation(struct btc_coexist *btcoexist, u8 op_code,
 static void halbtc_leave_lps(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv;
-	struct rtl_ps_ctl *ppsc;
 	bool ap_enable = false;
 
 	rtlpriv = btcoexist->adapter;
-	ppsc = rtl_psc(rtlpriv);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_AP_MODE_ENABLE,
 			   &ap_enable);
@@ -315,11 +313,9 @@ static void halbtc_leave_lps(struct btc_coexist *btcoexist)
 static void halbtc_enter_lps(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv;
-	struct rtl_ps_ctl *ppsc;
 	bool ap_enable = false;
 
 	rtlpriv = btcoexist->adapter;
-	ppsc = rtl_psc(rtlpriv);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_AP_MODE_ENABLE,
 			   &ap_enable);