staging: r8188eu: remove unused PHY_GetTxPowerLevel8188E()

Function PHY_GetTxPowerLevel8188E() is unused and it is the only user
of function phy_TxPwrIdxToDbm(), remove both.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210908223903.10516-2-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/rtl8188e_phycfg.c

@@ -670,85 +670,6 @@ static	u8 phy_DbmToTxPwrIdx(struct adapter *Adapter, enum wireless_mode Wireless
 	return TxPwrIdx;
 }
 
-/*  */
-/*	Description: */
-/*		Map Tx power index into dBm according to */
-/*		current HW model, for example, RF and PA, and */
-/*		current wireless mode. */
-/*	By Bruce, 2008-01-29. */
-/*  */
-static int phy_TxPwrIdxToDbm(struct adapter *Adapter, enum wireless_mode WirelessMode, u8 TxPwrIdx)
-{
-	int				Offset = 0;
-	int				PwrOutDbm = 0;
-
-	/*  */
-	/*  Tested by MP, we found that CCK Index 0 equals to -7dbm, OFDM legacy equals to -8dbm. */
-	/*  Note: */
-	/*	The mapping may be different by different NICs. Do not use this formula for what needs accurate result. */
-	/*  By Bruce, 2008-01-29. */
-	/*  */
-	switch (WirelessMode) {
-	case WIRELESS_MODE_B:
-		Offset = -7;
-		break;
-	case WIRELESS_MODE_G:
-	case WIRELESS_MODE_N_24G:
-	default:
-		Offset = -8;
-		break;
-	}
-
-	PwrOutDbm = TxPwrIdx / 2 + Offset; /*  Discard the decimal part. */
-
-	return PwrOutDbm;
-}
-
-/*-----------------------------------------------------------------------------
- * Function:    GetTxPowerLevel8190()
- *
- * Overview:    This function is export to "common" moudule
- *
- * Input:       struct adapter *Adapter
- *			psByte			Power Level
- *
- * Output:      NONE
- *
- * Return:      NONE
- *
- *---------------------------------------------------------------------------*/
-void PHY_GetTxPowerLevel8188E(struct adapter *Adapter, u32 *powerlevel)
-{
-	struct hal_data_8188e	*pHalData = GET_HAL_DATA(Adapter);
-	u8 TxPwrLevel = 0;
-	int			TxPwrDbm;
-
-	/*  */
-	/*  Because the Tx power indexes are different, we report the maximum of them to */
-	/*  meet the CCX TPC request. By Bruce, 2008-01-31. */
-	/*  */
-
-	/*  CCK */
-	TxPwrLevel = pHalData->CurrentCckTxPwrIdx;
-	TxPwrDbm = phy_TxPwrIdxToDbm(Adapter, WIRELESS_MODE_B, TxPwrLevel);
-
-	/*  Legacy OFDM */
-	TxPwrLevel = pHalData->CurrentOfdm24GTxPwrIdx + pHalData->LegacyHTTxPowerDiff;
-
-	/*  Compare with Legacy OFDM Tx power. */
-	if (phy_TxPwrIdxToDbm(Adapter, WIRELESS_MODE_G, TxPwrLevel) > TxPwrDbm)
-		TxPwrDbm = phy_TxPwrIdxToDbm(Adapter, WIRELESS_MODE_G, TxPwrLevel);
-
-	/*  HT OFDM */
-	TxPwrLevel = pHalData->CurrentOfdm24GTxPwrIdx;
-
-	/*  Compare with HT OFDM Tx power. */
-	if (phy_TxPwrIdxToDbm(Adapter, WIRELESS_MODE_N_24G, TxPwrLevel) > TxPwrDbm)
-		TxPwrDbm = phy_TxPwrIdxToDbm(Adapter, WIRELESS_MODE_N_24G, TxPwrLevel);
-
-	*powerlevel = TxPwrDbm;
-}
-
 static void getTxPowerIndex88E(struct adapter *Adapter, u8 channel, u8 *cckPowerLevel,
 			       u8 *ofdmPowerLevel, u8 *BW20PowerLevel,
 			       u8 *BW40PowerLevel)

drivers/staging/r8188eu/include/Hal8188EPhyCfg.h

@@ -189,7 +189,6 @@ int PHY_RFConfig8188E(struct adapter *adapter);
 void rtl8192c_PHY_GetHWRegOriginalValue(struct adapter *adapter);
 
 /*  BB TX Power R/W */
-void PHY_GetTxPowerLevel8188E(struct adapter *adapter, u32 *powerlevel);
 void PHY_SetTxPowerLevel8188E(struct adapter *adapter, u8 channel);
 bool PHY_UpdateTxPowerDbm8188E(struct adapter *adapter, int power);