[clang] clang/HIP: Remove requires system-linux from some driver tests (PR #112842)

[Matt Arsenault via cfe-commits]

arsenm wrote:

### Merge activity

* **Mar 7, 4:21 AM EST**: A user started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/112842).


https://github.com/llvm/llvm-project/pull/112842