UBI: rename ubi_scan_rm_volume

The old name is not logical anymore - rename it to 'ubi_remove_av()'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c
index 0c8c172..cfe3830 100644
--- a/drivers/mtd/ubi/vtbl.c
+++ b/drivers/mtd/ubi/vtbl.c
@@ -738,7 +738,7 @@
 		vol = ubi->volumes[i];
 		if (!vol) {
 			if (av)
-				ubi_scan_rm_volume(ai, av);
+				ubi_remove_av(ai, av);
 			continue;
 		}
 
@@ -756,7 +756,7 @@
 			 * these eraseblocks.
 			 */
 			ubi_msg("finish volume %d removal", av->vol_id);
-			ubi_scan_rm_volume(ai, av);
+			ubi_remove_av(ai, av);
 		} else if (av) {
 			err = check_av(vol, av);
 			if (err)