staging: r8188eu: remove unused function SetBcnCtrlReg()

Remove unused function SetBcnCtrlReg().
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830092153.9283-5-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/rtl8188e_hal_init.c

@@ -2283,21 +2283,3 @@ bool HalDetectPwrDownMode88E(struct adapter *Adapter)
 
 	return pHalData->pwrdown;
 }	/*  HalDetectPwrDownMode */
-
-/*  This function is used only for 92C to set REG_BCN_CTRL(0x550) register. */
-/*  We just reserve the value of the register in variable pHalData->RegBcnCtrlVal and then operate */
-/*  the value of the register via atomic operation. */
-/*  This prevents from race condition when setting this register. */
-/*  The value of pHalData->RegBcnCtrlVal is initialized in HwConfigureRTL8192CE() function. */
-
-void SetBcnCtrlReg(struct adapter *padapter, u8 SetBits, u8 ClearBits)
-{
-	struct hal_data_8188e *pHalData;
-
-	pHalData = GET_HAL_DATA(padapter);
-
-	pHalData->RegBcnCtrlVal |= SetBits;
-	pHalData->RegBcnCtrlVal &= ~ClearBits;
-
-	rtw_write8(padapter, REG_BCN_CTRL, (u8)pHalData->RegBcnCtrlVal);
-}

drivers/staging/r8188eu/include/rtl8188e_hal.h

@@ -437,9 +437,6 @@ bool HalDetectPwrDownMode88E(struct adapter *Adapter);
 void Hal_InitChannelPlan(struct adapter *padapter);
 void rtl8188e_set_hal_ops(struct hal_ops *pHalFunc);
 
-/*  register */
-void SetBcnCtrlReg(struct adapter *padapter, u8 SetBits, u8 ClearBits);
-
 void rtl8188e_clone_haldata(struct adapter *dst, struct adapter *src);
 void rtl8188e_start_thread(struct adapter *padapter);
 void rtl8188e_stop_thread(struct adapter *padapter);