SecurityPkg/Tcg2ConfigPei: Remove an unused PCD

SecurityPkg/Tcg2ConfigPei: Remove an unused PCD

The PCD below is unused, so it has been removed from inf.
gEfiSecurityPkgTokenSpaceGuid.PcdTpmBaseAddress

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: shenglei <shenglei.zhang@intel.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>