[llvm] [X86] Don't drop a redundant 32-bit `and` whose users were selected as def32 (PR #223750)

[Eli Friedman via llvm-commits]

efriedma-quic wrote:

On AArch64 we killed off isDef32, and instead do some post-isel cleanups.  It's too hard to get the predicate right.  See bccbf5276e6ee23a427b48d80ad42ff31575c1e7 .

https://github.com/llvm/llvm-project/pull/223750