[llvm] Remove cleanup of incorrect output in test dir (PR #171256)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 approved this pull request.

LGTM. Probably want to wait 12 hours or so for the bots to cycle.

Thanks for fixing this.

https://github.com/llvm/llvm-project/pull/171256