soc/intel/xeon_sp: Remove invalid comment

The comment is only true if all sockets have working CPUs installed.

Change-Id: I8c3376c9233c33fb770082573e07e9d96abb7855
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76557
Reviewed-by: Johnny Lin <Johnny_Lin@wiwynn.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/soc/intel/xeon_sp/util.c

@@ -132,7 +132,6 @@ bool soc_cpu_is_enabled(const size_t idx)
 
 unsigned int soc_get_num_cpus(void)
 {
-	/* The FSP IIO UDS HOB has field numCpus, it is actually socket count */
 	return get_iio_uds()->SystemStatus.numCpus;
 }