[compiler-rt] [compiler-rt][tests] Removed the use of parentheses in compiler-rt tests with lit internal shell (PR #105729)

[Paul Kirth via llvm-commits]

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

Other than addressing my one comment the rest of the change seems fine to me. 

https://github.com/llvm/llvm-project/pull/105729