arch: powerpc: platforms: ps3: repository.c: Remove unused function

[Michael Ellerman]

On Sat, 2014-20-12 at 15:00:01 UTC, Rickard Strandqvist wrote:
> Remove the function ps3_repository_write_highmem_info() that is not used anywhere.
> 
> This was partially found by using a static code analysis program called cppcheck.

Actually it looks like everything under CONFIG_PS3_REPOSITORY_WRITE is unused,
and never was used.

We appreciate these sort of patches, but if you can dig a little deeper and
also work out why the code is unused that would be much more useful.

cheers