[llvm] RuntimeLibcalls: Remove target check for sjlj config (PR #148792)

[Matt Arsenault via llvm-commits]

arsenm wrote:

### Merge activity

* **Aug 4, 4:37 AM UTC**: [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/148792) rebased this pull request as part of a merge.


https://github.com/llvm/llvm-project/pull/148792