[clang] Remove delayed typo expressions (PR #143423)

[Erich Keane via cfe-commits]

https://github.com/erichkeane approved this pull request.

I spent a while with these changes, and they all seem correct to me best I can tell.  As most seems to just be deletions, its as good as I can figure.

It would be cool if we could have done this more gradually, but I'm happy to commit-as-is.

https://github.com/llvm/llvm-project/pull/143423