UefiCpuLib inf file reference itself in [LibraryClasses] section, this is not necessary. This patch remove it. Cc: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Ming Shao <ming.shao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>