Nuke the old JIT.

I am sure we will be finding bits and pieces of dead code for years to
come, but this is a good start.

Thanks to Lang Hames for making MCJIT a good replacement!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215111 91177308-0d34-0410-b5e6-96231b3b80d8
Remove empty directories.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215115 91177308-0d34-0410-b5e6-96231b3b80d8
fix configure+make build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215116 91177308-0d34-0410-b5e6-96231b3b80d8
Fix the ocaml bindings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215117 91177308-0d34-0410-b5e6-96231b3b80d8