staging: rtl8188eu: remove RegulatorMode from struct hal_data_8188e

This field is not used anywhere.  Also, kill the rt_regulator_mode enum
which exists just for this field.
Signed-off-by: Jakub Sitnicki <jsitnicki@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c

@@ -144,9 +144,6 @@ static struct HAL_VERSION ReadChipVersion8188E(struct adapter *padapter)
 	ChipVersion.VendorType = ((value32 & VENDOR_ID) ? CHIP_VENDOR_UMC : CHIP_VENDOR_TSMC);
 	ChipVersion.CUTVersion = (value32 & CHIP_VER_RTL_MASK)>>CHIP_VER_RTL_SHIFT; /*  IC version (CUT) */
 
-	/*  For regulator mode. by tynli. 2011.01.14 */
-	pHalData->RegulatorMode = ((value32 & TRP_BT_EN) ? RT_LDO_REGULATOR : RT_SWITCHING_REGULATOR);
-
 	ChipVersion.ROMVer = 0;	/*  ROM code version. */
 
 	dump_chip_info(ChipVersion);

drivers/staging/rtl8188eu/include/rtl8188e_hal.h

@@ -188,15 +188,8 @@ struct txpowerinfo24g {
 
 #define EFUSE_PROTECT_BYTES_BANK	16
 
-/*  For RTL8723 regulator mode. */
-enum rt_regulator_mode {
-	RT_SWITCHING_REGULATOR = 0,
-	RT_LDO_REGULATOR = 1,
-};
-
 struct hal_data_8188e {
 	struct HAL_VERSION	VersionID;
-	enum rt_regulator_mode RegulatorMode; /*  switching regulator or LDO */
 	u16	CustomerID;
 	u8 *pfirmware;
 	u32 fwsize;