Revert D121556 "[randstruct] Add randomize structure layout support"
This reverts commit 3f0587d0c668202bb89d29a25432aa290e551a31.
Not all tests pass after a few rounds of fixes.
I spot one failure that std::shuffle (potentially different results with
different STL implementations) was misused and replaced it with llvm::shuffle,
but there appears to be another failure in a Windows build.
The latest failure is reported on https://reviews.llvm.org/D121556#3440383
GitOrigin-RevId: a58d0af058038595c93de961b725f86997cf8d4a
21 files changed