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 <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Link: https://lore.kernel.org/r/1570352999-45790-6-git-send-email-zhengbin13@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 {
        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;
 
        spin_lock_bh(&(mlme->scanned_queue.lock));
        phead = get_list_head(queue);
-       adapter = (struct adapter *)mlme->nic_hdl;
 
        mlme->pscanned = get_next(phead);