U5SeriesPkg/PeiCoreInfoHob: Remove hart count check

Remove hart count check because the bootable hart count
may be varied according to the harts declared in Device
tree and PcdBootableHartNumber PCD.

Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Signed-off-by: Abner Chang <abner.chang@hpe.com>
Reviewed-by: Daniel Schaefer <daniel.schaefer@hpe.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>