[llvm] [LV][NFC] Remove more unnecessary passes from RUN lines (PR #193686)

[David Sherwood via llvm-commits]

david-arm wrote:

Hmm, I don't think I can remove `-simplifycfg-require-and-preserve-domtree` from any tests modified in this PR without also removing the simplifycfg pass from the RUN line. @fhahn are you happy with me following up with another PR after this that modifies CHECK lines or would you prefer to remove all simplifycfg in one large PR?

https://github.com/llvm/llvm-project/pull/193686