[clang] Revert "[clang][AST] Fix positioning of preserve cconv attributes in TypePrinter" (PR #147724)

[Erich Keane via cfe-commits]

erichkeane wrote:

Typically if you can fix it reasonably easily, we don't have you revert, just 'fix' the thing.  Our revert policy only requires revert if you need significant time to fix it.

https://github.com/llvm/llvm-project/pull/147724