Dead code eliminate the massive hexagon builtin intrinsic supporting code.

The tablegen'd code does the same thing without this egregious duplication.
In my limited testing everything seems to work, however there can be
differences if the clang and llvm builtin definitions don't match.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159371 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed