staging: r8188eu: CurrentWirelessMode is not used

CurrentWirelessMode in struct hal_data_8188e is not used. Remove the
component and the enum with its possible values.

Acked-by: Michael Straube <straube.linux@gmail.com>
Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211016113008.27549-9-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/Hal8188EPhyCfg.h

@@ -48,14 +48,6 @@ enum rf_radio_path {
 						 * total three groups */
 #define CHANNEL_GROUP_MAX_88E		6
 
-enum wireless_mode {
-	WIRELESS_MODE_UNKNOWN = 0x00,
-	WIRELESS_MODE_B			= BIT(0),
-	WIRELESS_MODE_G			= BIT(1),
-	WIRELESS_MODE_AUTO		= BIT(5),
-	WIRELESS_MODE_N_24G		= BIT(3),
-};
-
 /* BB/RF related */
 enum RF_TYPE_8190P {
 	RF_TYPE_MIN,		/*  0 */

drivers/staging/r8188eu/include/rtl8188e_hal.h

@@ -162,7 +162,6 @@ struct hal_data_8188e {
 	u8	PGMaxGroup;
 	/* current WIFI_PHY values */
 	u32	ReceiveConfig;
-	enum wireless_mode CurrentWirelessMode;
 	enum ht_channel_width CurrentChannelBW;
 	u8	CurrentChannel;
 	u8	nCur40MhzPrimeSC;/*  Control channel sub-carrier */