xfs: remove the never fully implemented UUID fork format

Remove the dead code dealing with the UUID fork format that was never
implemented in Linux (and neither in IRIX as far as I know).

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index ee34899..4e48e05 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -3163,16 +3163,8 @@ xlog_recover_inode_pass2(
 	}
 
 	fields = in_f->ilf_fields;
-	switch (fields & (XFS_ILOG_DEV | XFS_ILOG_UUID)) {
-	case XFS_ILOG_DEV:
+	if (fields & XFS_ILOG_DEV)
 		xfs_dinode_put_rdev(dip, in_f->ilf_u.ilfu_rdev);
-		break;
-	case XFS_ILOG_UUID:
-		memcpy(XFS_DFORK_DPTR(dip),
-		       &in_f->ilf_u.ilfu_uuid,
-		       sizeof(uuid_t));
-		break;
-	}
 
 	if (in_f->ilf_size == 2)
 		goto out_owner_change;