staging: rtl8192e: remove 5G related code

In previous patches we removed 5G code since the hardware that uses this
driver does not support 5G. There is still some 5G related code, remove it.
All the removed defines are unused and we can safely remove "N-5G" from the
rtllib_modes array.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/20230619155203.6039-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/r8192E_hw.h

@@ -159,7 +159,6 @@ enum _RTL8192PCI_HW {
 	WFCRC2		  = 0x2f8,
 
 	BW_OPMODE		= 0x300,
-#define	BW_OPMODE_5G			BIT1
 #define	BW_OPMODE_20MHZ			BIT2
 	IC_VERRSION		= 0x301,
 	MSR			= 0x303,

drivers/staging/rtl8192e/rtl8192e/r8192E_phyreg.h

@@ -266,7 +266,6 @@
 #define b3WireAddressLength		0x400
 #define b3WireRFPowerDown		0x1
 /*#define bHWSISelect			0x8 */
-#define b5GPAPEPolarity			0x40000000
 #define b2GPAPEPolarity			0x80000000
 #define bRFSW_TxDefaultAnt		0x3
 #define bRFSW_TxOptionAnt		0x30
@@ -284,7 +283,6 @@
 #define bRFSI_ANTSW			0x100
 #define bRFSI_ANTSWB			0x200
 #define bRFSI_PAPE			0x400
-#define bRFSI_PAPE5G			0x800
 #define bBandSelect			0x1
 #define bHTSIG2_GI			0x80
 #define bHTSIG2_Smoothing		0x01

drivers/staging/rtl8192e/rtllib.h

@@ -427,7 +427,6 @@ enum wireless_mode {
 	WIRELESS_MODE_G = 0x04,
 	WIRELESS_MODE_AUTO = 0x08,
 	WIRELESS_MODE_N_24G = 0x10,
-	WIRELESS_MODE_N_5G = 0x20
 };
 
 #ifndef ETH_P_PAE

drivers/staging/rtl8192e/rtllib_wx.c

@@ -19,7 +19,7 @@
 #include "rtllib.h"
 
 static const char * const rtllib_modes[] = {
-	"a", "b", "g", "?", "N-24G", "N-5G"
+	"a", "b", "g", "?", "N-24G"
 };
 
 #define MAX_CUSTOM_LEN 64