Remove the RenderMachineFunction HTML output pass.

I don't think anyone has been using this functionality for a while, and
it is getting in the way of refactoring now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158876 91177308-0d34-0410-b5e6-96231b3b80d8
7 files changed