Cleanup old XFS_BTREE_* traces

Remove unused legacy btree traces from IRIX era.

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index af197a5..a2dd7f4 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -93,8 +93,6 @@ __xfs_inobt_alloc_block(
 	int			error;		/* error return value */
 	xfs_agblock_t		sbno = be32_to_cpu(start->s);
 
-	XFS_BTREE_TRACE_CURSOR(cur, XBT_ENTRY);
-
 	memset(&args, 0, sizeof(args));
 	args.tp = cur->bc_tp;
 	args.mp = cur->bc_mp;
@@ -107,17 +105,14 @@ __xfs_inobt_alloc_block(
 	args.resv = resv;
 
 	error = xfs_alloc_vextent(&args);
-	if (error) {
-		XFS_BTREE_TRACE_CURSOR(cur, XBT_ERROR);
+	if (error)
 		return error;
-	}
+
 	if (args.fsbno == NULLFSBLOCK) {
-		XFS_BTREE_TRACE_CURSOR(cur, XBT_EXIT);
 		*stat = 0;
 		return 0;
 	}
 	ASSERT(args.len == 1);
-	XFS_BTREE_TRACE_CURSOR(cur, XBT_EXIT);
 
 	new->s = cpu_to_be32(XFS_FSB_TO_AGBNO(args.mp, args.fsbno));
 	*stat = 1;