Kconfig: Remove not found sources

Change-Id: I3691a4162eecbd48321348e136f72b73da74e225
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37078
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/cpu/intel/Kconfig

@@ -9,7 +9,6 @@ source src/cpu/intel/model_6fx/Kconfig
 source src/cpu/intel/model_1067x/Kconfig
 source src/cpu/intel/model_106cx/Kconfig
 source src/cpu/intel/model_206ax/Kconfig
-source src/cpu/intel/fsp_model_406dx/Kconfig
 source src/cpu/intel/model_2065x/Kconfig
 source src/cpu/intel/model_f2x/Kconfig
 source src/cpu/intel/model_f3x/Kconfig

src/soc/intel/Kconfig

@@ -5,8 +5,6 @@ source "src/soc/intel/braswell/Kconfig"
 source "src/soc/intel/broadwell/Kconfig"
 source "src/soc/intel/cannonlake/Kconfig"
 source "src/soc/intel/denverton_ns/Kconfig"
-source "src/soc/intel/fsp_baytrail/Kconfig"
-source "src/soc/intel/fsp_broadwell_de/Kconfig"
 source "src/soc/intel/quark/Kconfig"
 source "src/soc/intel/skylake/Kconfig"
 source "src/soc/intel/icelake/Kconfig"