Reverts llvm/llvm-project#148758 [As requested.](https://github.com/llvm/llvm-project/pull/148758#pullrequestreview-3076627201)
This directory contains testcases that the verifier is supposed to detect as malformed LLVM code. Testcases for situations that the verifier incorrectly identifies as malformed should go in the test/Assembler directory.