staging: rtl8192e: Remove unchanged variable dig_enable_flag

Remove variable dig_enable_flag as its value is set to 1 at
initialization. No further writes to dig_enable_flag are done. The
equations result accordingly. Remove dead code.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/24a9245840093c5a14124f9fc896433c7d85d18c.1697127817.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/rtl_dm.c

@@ -913,8 +913,6 @@ static void _rtl92e_dm_dig_init(struct net_device *dev)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	dm_digtable.dig_enable_flag	= true;
-
 	dm_digtable.dig_algorithm = DIG_ALGO_BY_RSSI;
 
 	dm_digtable.dig_algorithm_switch = 0;
@@ -941,9 +939,6 @@ static void _rtl92e_dm_dig_init(struct net_device *dev)
 
 static void _rtl92e_dm_ctrl_initgain_byrssi(struct net_device *dev)
 {
-	if (!dm_digtable.dig_enable_flag)
-		return;
-
 	if (dm_digtable.dig_algorithm == DIG_ALGO_BY_FALSE_ALARM)
 		_rtl92e_dm_ctrl_initgain_byrssi_false_alarm(dev);
 	else if (dm_digtable.dig_algorithm == DIG_ALGO_BY_RSSI)
@@ -976,9 +971,6 @@ static void _rtl92e_dm_ctrl_initgain_byrssi_driver(struct net_device *dev)
 	u8 i;
 	static u8	fw_dig;
 
-	if (!dm_digtable.dig_enable_flag)
-		return;
-
 	if (dm_digtable.dig_algorithm_switch)
 		fw_dig = 0;
 	if (fw_dig <= 3) {
@@ -1007,9 +999,6 @@ static void _rtl92e_dm_ctrl_initgain_byrssi_false_alarm(struct net_device *dev)
 	struct r8192_priv *priv = rtllib_priv(dev);
 	u8 i;
 
-	if (!dm_digtable.dig_enable_flag)
-		return;
-
 	if (dm_digtable.dig_algorithm_switch) {
 		dm_digtable.dig_state = DM_STA_DIG_MAX;
 		for (i = 0; i < 3; i++)

drivers/staging/rtl8192e/rtl8192e/rtl_dm.h

@@ -50,7 +50,6 @@
 
 /*------------------------------Define structure----------------------------*/
 struct dig_t {
-	u8		dig_enable_flag;
 	u8		dig_algorithm;
 	u8		dig_algorithm_switch;