[llvm-branch-commits] [llvm] release/19.x: Revert "[CGData] llvm-cgdata (#89884)" (PR #103886)

[Amy Kwan via llvm-branch-commits]

amy-kwan wrote:

I've made a request for backporting to resolve the AIX LIT failures:
```
  LLVM :: tools/llvm-cgdata/merge-archive.test
  LLVM :: tools/llvm-cgdata/merge-concat.test
  LLVM :: tools/llvm-cgdata/merge-double.test
  LLVM :: tools/llvm-cgdata/merge-single.test
```
FYI @tru @azhan92 @kamaub @gulfemsavrun 

https://github.com/llvm/llvm-project/pull/103886