QuarkSocPkg: MemoryInit/Pei: remove set but unused variable TRFC
The expression that was used to set it had no side effects.
Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Kelly Steele <kelly.steele@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com>