staging: rtl8723bs: Remove ioctl interface

Wireless drivers should not use the ioctl interface, so remove this
interface for the rtl8723bs driver. (found by code inspection)

Signed-off-by: 谢致邦 (XIE Zhibang) <Yeking@Red54.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/tencent_E4A835D41FF1F35C7BDFCF4EA0136D548F06@qq.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Red54

drivers/staging/rtl8723bs/Makefile

@@ -48,7 +48,6 @@ r8723bs-y = \
 		hal/HalHWImg8723B_RF.o \
 		hal/HalPhyRf_8723B.o \
 		os_dep/ioctl_cfg80211.o \
-		os_dep/ioctl_linux.o \
 		os_dep/mlme_linux.o \
 		os_dep/osdep_service.o \
 		os_dep/os_intfs.o \

drivers/staging/rtl8723bs/include/osdep_intf.h

@@ -47,8 +47,6 @@ u32 rtw_start_drv_threads(struct adapter *padapter);
 void rtw_stop_drv_threads(struct adapter *padapter);
 void rtw_cancel_all_timer(struct adapter *padapter);
 
-int rtw_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-
 int rtw_init_netdev_name(struct net_device *pnetdev, const char *ifname);
 struct net_device *rtw_init_netdev(struct adapter *padapter);
 void rtw_unregister_netdevs(struct dvobj_priv *dvobj);