The UDF feature is not ready for production. Remove it from the UDK2018
branch.
This commit removes the UDF/ECMA-167 file system related code changes
done within:
MdeModulePkg/Universal/Disk/PartitionDxe/
MdeModulePkg/Universal/Disk/UdfDxe/
MdeModulePkg/MdeModulePkg.dsc
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>