soc/intel/skylake: Remove romcc related Kconfig option

Change-Id: I9090be3ccaa8a61312293e9da3679a752a908062
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30403
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/soc/intel/skylake/Kconfig

@@ -113,10 +113,6 @@ config VBOOT
 	select VBOOT_VBNV_CMOS
 	select VBOOT_VBNV_CMOS_BACKUP_TO_FLASH
 
-config BOOTBLOCK_RESETS
-	string
-	default "soc/intel/common/reset.c"
-
 config CBFS_SIZE
 	hex
 	default 0x200000