TAKE - remove a function xfs added to filemap.c

[Steve Lord <lord@xxxxxxx>]

There is now a function in the regular kernel which does what
we need, so use it instead of our own and reduce the xfs footprint
in the mainline kernel code.

Date:  Sat Jan 26 05:32:00 PST 2002
Workarea:  jen.americas.sgi.com:/src/lord/xfs-linux.2.4

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.x-xfs


Modid:  2.4.x-xfs:slinx:110335a
linux/mm/filemap.c - 1.104
linux/kernel/ksyms.c - 1.123
linux/include/linux/pagemap.h - 1.38
        - Remove find_get_page_simple

linux/fs/xfs/pagebuf/page_buf_io.c - 1.4
        - Remove find_get_page_simple, there is an official function for this 
now.