dm path selector: remove 'repeat_count' return from .select_path hook

If a path selector has any use for a repeat_count it should be handled
locally and not depend on the dm-mpath core to be concerned with it.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/drivers/md/dm-queue-length.c b/drivers/md/dm-queue-length.c
index aeea3b7..23f1786 100644
--- a/drivers/md/dm-queue-length.c
+++ b/drivers/md/dm-queue-length.c
@@ -184,8 +184,7 @@
 /*
  * Select a path having the minimum number of in-flight I/Os
  */
-static struct dm_path *ql_select_path(struct path_selector *ps,
-				      unsigned *repeat_count, size_t nr_bytes)
+static struct dm_path *ql_select_path(struct path_selector *ps, size_t nr_bytes)
 {
 	struct selector *s = ps->context;
 	struct path_info *pi = NULL, *best = NULL;
@@ -211,8 +210,6 @@
 	if (!best)
 		goto out;
 
-	*repeat_count = best->repeat_count;
-
 	ret = best->path;
 out:
 	spin_unlock_irqrestore(&s->lock, flags);