Dropping PECI patches

[Joel Stanley]

Hi Jae,

As I have not seen an upstream submission of PECI for a number of
release cycles (since January, over 10 months ago) it will be dropped
from the OpenBMC kernel tree.

If you still want this code in the kernel you will need to make a new
upstream submission.

This aligns with the OpenBMC kernel development process, where a patch
is carried to assist developers who are actively working to get their
drivers merged upstream

Cheers,

Joel