This reverts commit b9cd48f96acdd07c627ccafbf4386a1f3dcd6c51.
-------------------------------------------------------------
Original commit message:
Adds logic to the IR verifier that checks whether !tbaa.struct nodes are
well-formed. That is, it checks that the operands of !tbaa.struct nodes
are in groups of three, that each group of three operands consists of
two integers and a valid tbaa node, and that the regions described by
the offset and size operands are non-overlapping.
PR: https://github.com/llvm/llvm-project/pull/86709