soc/intel/block/cpu/mp_init.c: Remove weak functions

All platforms implement those and using a no-op function is not
expected, so it is better to fail the build if the soc specific code
is not implemented.

Change-Id: Id946f5b279dcfa6946381b9a67faba6b8c1ca332
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51522
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/common/block/cpu/mp_init.c

@@ -15,17 +15,6 @@
 #include <intelblocks/msr.h>
 #include <soc/cpu.h>
 
-/* SoC override function */
-__weak void soc_core_init(struct device *dev)
-{
-	/* no-op */
-}
-
-__weak void soc_init_cpus(struct bus *cpu_bus)
-{
-	/* no-op */
-}
-
 static void init_one_cpu(struct device *dev)
 {
 	soc_core_init(dev);