staging: rtl8188eu: Remove unused funtion PHY_ScanOperationBackup8188E()

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

@@ -754,14 +754,6 @@ PHY_SetTxPowerLevel8188E(
 	rtl8188e_PHY_RF6052SetOFDMTxPower(Adapter, &ofdmPowerLevel[0], &BW20PowerLevel[0], &BW40PowerLevel[0], channel);
 }
 
-void
-PHY_ScanOperationBackup8188E(
-		struct adapter *Adapter,
-		u8 Operation
-	)
-{
-}
-
 /*-----------------------------------------------------------------------------
  * Function:    PHY_SetBWModeCallback8192C()
  *