TAKE 946641 - remove some dead code from xfs_iozero & friends

[Eric Sandeen <sandeen@xxxxxxxxxxxxxxxxxxxxxxxx>]

remove unused vars, args, & unneeded intermediate vars from zeroing code


Date:  Tue Dec  6 21:08:24 PST 2005
Workarea:  penguin.americas.sgi.com:/src/eric/xfs-trees/xfs-GUT-clean
Inspected by:  nathans

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/xfs-kern/xfs-linux


Modid:  xfs-linux:xfs-kern:203328a
xfs_inode.c - 1.423 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_inode.c.diff?r1=text&tr1=1.423&r2=text&tr2=1.422&f=h
linux-2.6/xfs_lrw.c - 1.230 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.6/xfs_lrw.c.diff?r1=text&tr1=1.230&r2=text&tr2=1.229&f=h
linux-2.4/xfs_lrw.c - 1.225 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.4/xfs_lrw.c.diff?r1=text&tr1=1.225&r2=text&tr2=1.224&f=h
        - remove unused vars, args, & unneeded intermediate vars from zeroing 
code