Fix the following error from gcc: Vlv2TbltDevicePkg/PpmPolicy/PpmPolicy.c: In function ?PpmPolicyEntry?: Vlv2TbltDevicePkg/PpmPolicy/PpmPolicy.c:50:29: error: variable ?MaxRatio? set but not used [-Werror=unused-but-set-variable] Cc: David Wei <david.wei@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Gary Lin <glin@suse.com> Reviewed-by: David Wei <david.wei@intel.com>