Vlv2TbltDevicePkg/Override/GenericBdsLib:Remove useless Perf code

Vlv2TbltDevicePkg/Override/GenericBdsLib:Remove useless Perf code

Our new performance infrastructure (edk2 trunk commit hash value:
SHA-1: 73fef64f14d1b97ae9bd4705df3becc022391eba ~
SHA-1: 115eae650bfd2be2c2bc37360f4a755065e774c4) can support to
dump performance date form ACPI table in OS. So we can remove
the old perf code to write performance data to OS.

Cc: David Wei <david.wei@intel.com>
Cc: Mang Guo <mang.guo@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: zwei4  <david.wei@intel.com>