staging: rtl8723bs: remove unused function declarations

Remove unused declarations of MRateToHwRate8723B() and
HwRateToMRate8723B() from rtl8723b_hal.h as they have no
implementation and are never called.

Signed-off-by: Oskar Ray-Frayssinet <rayfraytech@gmail.com>
Reviewed-by: Ethan Tidmore <ethantidmore06@gmail.com>
Link: https://patch.msgid.link/20260321223347.7054-1-rayfraytech@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: StudentTestTech

drivers/staging/rtl8723bs/include/rtl8723b_hal.h

@@ -236,8 +236,6 @@ int FirmwareDownloadBT(struct adapter *adapter, struct rt_firmware *firmware);
 void CCX_FwC2HTxRpt_8723b(struct adapter *padapter, u8 *pdata, u8 len);
 s32 c2h_id_filter_ccx_8723b(u8 *buf);
 s32 c2h_handler_8723b(struct adapter *padapter, u8 *pC2hEvent);
-u8 MRateToHwRate8723B(u8 rate);
-u8 HwRateToMRate8723B(u8 rate);
 
 void Hal_ReadRFGainOffset(struct adapter *padapter, u8 *hwinfo,
 			  bool AutoLoadFail);