fsnotify: remove group->mask

group->mask is now useless.  It was originally a shortcut for fsnotify to
save on performance.  These checks are now redundant, so we remove them.

Signed-off-by: Eric Paris <eparis@redhat.com>

fs/notify/dnotify/dnotify.c

@@ -199,8 +199,6 @@ void dnotify_flush(struct file *filp, fl_owner_t id)
 	if (dn_mark->dn == NULL)
 		fsnotify_destroy_mark(fsn_mark);
 
-	fsnotify_recalc_group_mask(dnotify_group);
-
 	mutex_unlock(&dnotify_mark_mutex);
 
 	fsnotify_put_mark(fsn_mark);
@@ -385,8 +383,6 @@ out:
 	if (destroy)
 		fsnotify_destroy_mark(fsn_mark);
 
-	fsnotify_recalc_group_mask(dnotify_group);
-
 	mutex_unlock(&dnotify_mark_mutex);
 	fsnotify_put_mark(fsn_mark);
 out_err: