qcacld-3.0: Remove cancel_rem_on_chan_var from struct hdd_adapter

Change Idaaacac4fdaf1b964432c33c10b1c86f8a591c2d ("qcacld-3.0:
Remove legacy P2P codes in HDD") removed the code that utilized
the cancel_rem_on_chan_var completion variable. Since it is no
longer used, remove the remaining references to it.

Change-Id: Icb2701a8335042aade3a2c7eb0af308e8bdfc658
CRs-Fixed: 2370037

core/hdd/inc/wlan_hdd_main.h

@@ -1245,9 +1245,6 @@ struct hdd_adapter {
 	/* completion variable for Linkup Event */
 	struct completion linkup_event_var;
 
-	/* completion variable for cancel remain on channel Event */
-	struct completion cancel_rem_on_chan_var;
-
 	/* completion variable for off channel  remain on channel Event */
 	struct completion offchannel_tx_event;
 	/* Completion variable for action frame */

core/hdd/src/wlan_hdd_main.c

@@ -5026,7 +5026,6 @@ static void hdd_init_completion(struct hdd_adapter *adapter)
 	init_completion(&adapter->disconnect_comp_var);
 	init_completion(&adapter->roaming_comp_var);
 	init_completion(&adapter->linkup_event_var);
-	init_completion(&adapter->cancel_rem_on_chan_var);
 	init_completion(&adapter->rem_on_chan_ready_event);
 	init_completion(&adapter->sta_authorized_event);
 	init_completion(&adapter->offchannel_tx_event);