iwlwifi: remove unused work structs

auth_work, calibrated_work, update_link_led
and report_work are never used, so remove them.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

drivers/net/wireless/iwlwifi/iwl-dev.h

@@ -1265,13 +1265,9 @@ struct iwl_priv {
 	struct workqueue_struct *workqueue;
 
 	struct work_struct restart;
-	struct work_struct calibrated_work;
 	struct work_struct scan_completed;
 	struct work_struct rx_replenish;
 	struct work_struct abort_scan;
-	struct work_struct update_link_led;
-	struct work_struct auth_work;
-	struct work_struct report_work;
 	struct work_struct request_scan;
 	struct work_struct beacon_update;
 	struct work_struct tt_work;