staging: rtl8192e: Remove variable dot11d_info

Remove variable dot11d_info as it is unused. Remove unused struct
channel_list and empty struct rt_dot11d_info.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/2438971feb0c02c5c72776f57201a4011f249190.1701989555.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/dot11d.c

@@ -7,11 +7,6 @@
  ******************************************************************************/
 #include "dot11d.h"
 
-struct channel_list {
-	u8      channel[32];
-	u8      len;
-};
-
 void dot11d_channel_map(struct rtllib_device *ieee)
 {
 

drivers/staging/rtl8192e/dot11d.h

@@ -18,12 +18,6 @@
  *		2 - valid (passive scan)
  */
 
-struct rt_dot11d_info {
-};
-
-#define GET_DOT11D_INFO(__ieee_dev)			\
-	 ((struct rt_dot11d_info *)((__ieee_dev)->dot11d_info))
-
 void dot11d_channel_map(struct rtllib_device *ieee);
 
 #endif

drivers/staging/rtl8192e/rtllib.h

@@ -1320,7 +1320,6 @@ struct rtllib_device {
 	u16 scan_watch_dog;
 
 	/* map of allowed channels. 0 is dummy */
-	void *dot11d_info;
 	u8 active_channel_map[MAX_CHANNEL_NUMBER+1];
 
 	int rate;       /* current rate */

drivers/staging/rtl8192e/rtllib_softmac.c

@@ -2077,9 +2077,6 @@ int rtllib_softmac_init(struct rtllib_device *ieee)
 	ieee->link_state = MAC80211_NOLINK;
 	for (i = 0; i < 5; i++)
 		ieee->seq_ctrl[i] = 0;
-	ieee->dot11d_info = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
-	if (!ieee->dot11d_info)
-		return -ENOMEM;
 
 	ieee->link_detect_info.SlotIndex = 0;
 	ieee->link_detect_info.SlotNum = 2;
@@ -2153,9 +2150,6 @@ void rtllib_softmac_free(struct rtllib_device *ieee)
 	cancel_work_sync(&ieee->ips_leave_wq);
 	cancel_work_sync(&ieee->wx_sync_scan_wq);
 	cancel_work_sync(&ieee->ps_task);
-
-	kfree(ieee->dot11d_info);
-	ieee->dot11d_info = NULL;
 }
 
 static inline struct sk_buff *