Fix build after a llvm API change.

git-svn-id: https://llvm.org/svn/llvm-project/dragonegg/trunk@208729 91177308-0d34-0410-b5e6-96231b3b80d8
Delete dead code.

git-svn-id: https://llvm.org/svn/llvm-project/dragonegg/trunk@208730 91177308-0d34-0410-b5e6-96231b3b80d8