[S] Change in coreboot[main]: smmrelocate: Drop unused parameter

[Shuo Liu (Code Review)]

Attention is currently required from: Christian Walter, Intel coreboot Reviewers, Johnny Lin, Jonathan Zhang, Patrick Rudolph, Tim Chu.

Shuo Liu has posted comments on this change by Patrick Rudolph. ( https://review.coreboot.org/c/coreboot/+/87257?usp=email )

Change subject: smmrelocate: Drop unused parameter
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Patch Set 3:

(1 comment)

Patchset:

PS3: 
My understanding is that cpu is a default parameter passsed from smm framework but some soc might not use it. It should be no harm to keep it?