btrfs: Remove noused chunk_tree and chunk_objectid from scrub_enumerate_chunks and scrub_chunk

These variables are not used from introduced version, remove them.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

fs/btrfs/scrub.c

@@ -3493,7 +3493,6 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
 
 static noinline_for_stack int scrub_chunk(struct scrub_ctx *sctx,
 					  struct btrfs_device *scrub_dev,
-					  u64 chunk_tree, u64 chunk_objectid,
 					  u64 chunk_offset, u64 length,
 					  u64 dev_offset, int is_dev_replace)
 {
@@ -3544,8 +3543,6 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
 	struct btrfs_root *root = sctx->dev_root;
 	struct btrfs_fs_info *fs_info = root->fs_info;
 	u64 length;
-	u64 chunk_tree;
-	u64 chunk_objectid;
 	u64 chunk_offset;
 	int ret = 0;
 	int slot;
@@ -3609,8 +3606,6 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
 		if (found_key.offset + length <= start)
 			goto skip;
 
-		chunk_tree = btrfs_dev_extent_chunk_tree(l, dev_extent);
-		chunk_objectid = btrfs_dev_extent_chunk_objectid(l, dev_extent);
 		chunk_offset = btrfs_dev_extent_chunk_offset(l, dev_extent);
 
 		/*
@@ -3643,9 +3638,8 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
 		dev_replace->cursor_right = found_key.offset + length;
 		dev_replace->cursor_left = found_key.offset;
 		dev_replace->item_needs_writeback = 1;
-		ret = scrub_chunk(sctx, scrub_dev, chunk_tree, chunk_objectid,
-				  chunk_offset, length, found_key.offset,
-				  is_dev_replace);
+		ret = scrub_chunk(sctx, scrub_dev, chunk_offset, length,
+				  found_key.offset, is_dev_replace);
 
 		/*
 		 * flush, submit all pending read and write bios, afterwards