soc/intel/icl: drop wrong, unused code

The ids used in function `soc_get_pch_series()` are not valid for
Icelake. Since it's not even used, instead of fixing it, drop it.

Change-Id: I4a1ee4b84f11ea314cb666ce4506ff90168da0ca
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49875
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions