[compiler-rt] Revert "[compiler-rt] Avoid generating coredumps when piped to a tool" (PR #85390)

[Fangrui Song via llvm-commits]

MaskRay wrote:

@arichardson compiler-rt/test/sanitizer_common/TestCases/corelimit.cpp needs an update

https://github.com/llvm/llvm-project/pull/85390