Ammending 220393 - Removing unused decoding tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220397 91177308-0d34-0410-b5e6-96231b3b80d8
Fix VS2012 build; C++11 type aliases are not supported.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220399 91177308-0d34-0410-b5e6-96231b3b80d8