SecurityPkg: Delete TdTcg2Dxe and HashLibTdx in SecurityPkg

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4752

TdTcg2Dxe and HashLibTdx have been moved to OvmfPkg. So delete the codes
in SecurityPkg and update SecurityPkg.dsc.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
6 files changed