staging: rtl8188eu: Remove unused funtion phy_TxPwrIdxToDbm()

Signed-off-by: navin patidar <navin.patidar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/rtl8188e_phycfg.c

@@ -631,40 +631,6 @@ int PHY_RFConfig8188E(struct adapter *Adapter)
 	return rtStatus;
 }
 
-/*  */
-/*	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;
-}
-
 static void getTxPowerIndex88E(struct adapter *Adapter, u8 channel, u8 *cckPowerLevel,
 			       u8 *ofdmPowerLevel, u8 *BW20PowerLevel,
 			       u8 *BW40PowerLevel)