Jay Foad faa4e35c62 Revert "[lit] Implement builtin umask (#94621)"
This reverts commit 9f6dd1f761a5121e9a69e5d1f67c2438c065b499.

Reverting to investigate buildbot failures e.g.:
"new failure on builder ppc64le-mlir-rhel-clang running on ppc64le-mlir-rhel-test"
2024-07-09 17:18:35 +01:00
..