staging: rtl8723au: Remove unused rtw_adapter * from struct intf_hdl

struct intf_hdl is now purely a wrapper around struct _io_ops, so we
can get rid of it in the next patch.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723au/hal/usb_ops_linux.c

@@ -827,8 +827,6 @@ void rtl8723au_set_intf_ops(struct rtw_adapter *padapter)
 	struct intf_hdl *pintf = &padapter->intf;
 	struct _io_ops *pops = &pintf->io_ops;
 
-	pintf->padapter = padapter;
-
 	memset((u8 *)pops, 0, sizeof(struct _io_ops));
 
 	pops->_read8 = &usb_read8;

drivers/staging/rtl8723au/include/rtw_io.h

@@ -136,8 +136,6 @@ struct io_req {
 };
 
 struct	intf_hdl {
-	struct rtw_adapter *padapter;
-
 	struct _io_ops	io_ops;
 };