TAKE - make BH_delay private to XFS in the 2.5 tree

[Steve Lord <lord@sgi.com>]

This is just some code reorg - and it gets xfs out of two more files

Date:  Fri May 24 13:33:45 PDT 2002
Workarea:  jen.americas.sgi.com:/src/lord/xfs-linux.2.5

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.5.x-xfs


Modid:  2.5.x-xfs:slinx:120223a
linux/drivers/block/ll_rw_blk.c - 1.101
	- remove buffer_delay check

linux/fs/xfs/pagebuf/page_buf.h - 1.16
	- make BH_Delay an xfs private thing

linux/include/linux/buffer_head.h - 1.2
	- remove BH_Delay