UefiCpuPkg: Remove alignment check when calculate microcode size.

UefiCpuPkg: Remove alignment check when calculate microcode size.

This patch removes the unnecessary alignment check on microcode patch
TotalSize introduced by commit d786a172. The TotalSize has already been
checked with 1K alignment and MAX_ADDRESS in previous code as below:

    if ( (UINTN)MicrocodeEntryPoint > (MAX_ADDRESS - TotalSize) ||
         ((UINTN)MicrocodeEntryPoint + TotalSize) > MicrocodeEnd ||
         (DataSize & 0x3) != 0 ||
         (TotalSize & (SIZE_1KB - 1)) != 0 ||
         TotalSize < DataSize
       ) {

Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Siyuan Fu <siyuan.fu@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>