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

drivers/staging/rtl8723bs/core/rtw_mlme.c: In function 
rtw_select_roaming_candidate:
drivers/staging/rtl8723bs/core/rtw_mlme.c:2007:18: warning: variable adapter 
set but not used [-Wunused-but-set-variable]

It is not used since commit 554c0a3abf21 ("staging:
Add rtl8723bs sdio wifi driver")

Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: zhengbin <zhengbi...@huawei.com>
---
 drivers/staging/rtl8723bs/core/rtw_mlme.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme.c 
b/drivers/staging/rtl8723bs/core/rtw_mlme.c
index 4000125..0ac7712 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme.c
@@ -1989,7 +1989,6 @@ int rtw_select_roaming_candidate(struct mlme_priv *mlme)
 {
        int ret = _FAIL;
        struct list_head        *phead;
-       struct adapter *adapter;
        struct __queue  *queue  = &(mlme->scanned_queue);
        struct  wlan_network    *pnetwork = NULL;
        struct  wlan_network    *candidate = NULL;
@@ -2001,7 +2000,6 @@ int rtw_select_roaming_candidate(struct mlme_priv *mlme)

        spin_lock_bh(&(mlme->scanned_queue.lock));
        phead = get_list_head(queue);
-       adapter = (struct adapter *)mlme->nic_hdl;

        mlme->pscanned = get_next(phead);

--
2.7.4

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