TAKE - remove a case where a write could go off twice

[lord@xxxxxxx]

If a buffer was queued to be written out delayed write and we decide
we need to write it now, then make sure we remove it from the delwri
list before issuing the new i/o request.

Date:  Tue Jul 25 15:31:44 PDT 2000
Workarea:  jen.cray.com:/src/lord/xfs-linux.2.4.0-test1

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.0-test1-xfs


Modid:  2.4.0-test1-xfs:slinx:67768a
linux/fs/xfs/xfs_rw.c - 1.321
        - Remove XFS_BUF_UNDELAYWRITE call from before xfs_bawrite, it is now
          automatically going to remove the effects of the delay write for us.

linux/fs/xfs/xfs_buf.h - 1.56
        - change xfs_bawrite to be a function which removes the buffer it is
          issuing a write on from the delwri list.

linux/fs/xfs/xfs_buf_item.c - 1.105
        - Remove XFS_BUF_UNDELAYWRITE call from before xfs_bawrite, it is now
          automatically going to remove the effects of the delay write for us.

linux/fs/xfs/xfs_inode_item.c - 1.92
        - Remove XFS_BUF_UNDELAYWRITE call from before xfs_bawrite, it is now
          automatically going to remove the effects of the delay write for us.