MdeModulePkg: Remove DxeSmmPerformanceLib

MdeModulePkg: Remove DxeSmmPerformanceLib

DxeSmmPerformanceLib previously is used by DP tool.
But in new pweformance infrastructure, we have updated
Dp tool to get the performance data from firmware
performance data table in ACPI.
Now the DxeSmmPerformanceLib is not used by
any module. So remove it from edk2 code base to
avoid being used by mistake.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>