Change in flashrom[master]: Revert "Add support for Intel Emmitsburg PCH"

[David Hendricks (Code Review)]

Attention is currently required from: Arthur Heymans, Nico Huber, Jonathan Zhang, Johnny Lin, Christian Walter, Stefan Reinauer, Edward O'Callaghan, David Hendricks, Deomid "rojer" Ryabkov, Tim Chu.
David Hendricks has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/57589 )

Change subject: Revert "Add support for Intel Emmitsburg PCH"
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Patch Set 1:

(1 comment)

Patchset:

PS1:
> BTW, the commit message of the patch being reverted doesn't match what the code does. Specifically: […]

Yeah, `<=` was used to match the pattern in the rest of that code. For example:
    if (content->ISL <= 2)
    	return CHIPSET_ICH9;
    if (content->ISL <= 10)
    	return CHIPSET_ICH10;

This assumes ISL between 3 and 10 maps to ICH10. That is suspicious on its own, but since this is how the logic was written I didn't see a reason to do things differently for newer chips. As I mentioned in the CB:54965 I think we should start using `==` instead for these comparisons.