[clang] Revert "Reapply "[clang][ssaf] Add --ssaf-extract-summaries= and --ssaf-tu-summary-file= options"" (PR #185429)

[Balázs Benics via cfe-commits]

steakhal wrote:

I think we can just override and merge this revert. Why should we wait?

https://github.com/llvm/llvm-project/pull/185429