hostap: Fix outdated comment about dev->destructor

After commit cf124db566e6 ("net: Fix inconsistent teardown and
release of private netdev state."), setting
'dev->needs_free_netdev' ensures device data is released, and
'dev->destructor' is not used anymore.

Fixes: cf124db566e6 ("net: Fix inconsistent teardown and release of private netdev state.")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/intersil/hostap/hostap_main.c

@@ -125,8 +125,8 @@ void hostap_remove_interface(struct net_device *dev, int rtnl_locked,
 	else
 		unregister_netdev(dev);
 
-	/* dev->destructor = free_netdev() will free the device data, including
-	 * private data, when removing the device */
+	/* 'dev->needs_free_netdev = true' implies device data, including
+	 * private data, will be freed when the device is removed */
 }