mac80211: Remove unused variable in per STA debugfs struct

Remove unused variable in per STA debugfs structure, 'commit 34e895075e21
("mac80211: allow station add/remove to sleep")' removed the only user of
'add_has_run'.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/debugfs_sta.c

@@ -352,8 +352,6 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
 	struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
 	u8 mac[3*ETH_ALEN];
 
-	sta->debugfs.add_has_run = true;
-
 	if (!stations_dir)
 		return;
 

net/mac80211/sta_info.h

@@ -488,7 +488,6 @@ struct sta_info {
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct sta_info_debugfsdentries {
 		struct dentry *dir;
-		bool add_has_run;
 	} debugfs;
 #endif