staging: rtl8723au: Remove another two unused prototypes

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723au/include/rtw_io.h

@@ -252,9 +252,6 @@ struct reg_protocol_wt {
 };
 
 
-uint register_intf_hdl(u8 *dev, struct intf_hdl *pintfhdl);
-void unregister_intf_hdl(struct intf_hdl *pintfhdl);
-
 void _rtw_attrib_read(struct rtw_adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
 void _rtw_attrib_write(struct rtw_adapter *adapter, u32 addr, u32 cnt, u8 *pmem);