[llvm] LoopVectorize/test: add missing CHECK lines, cleanup intrinsic.ll (PR #70202)

[Florian Hahn via llvm-commits]

fhahn wrote:

> I agree that it looks a bit strange on the GitHub UI, but it looks fine in my editor.

If it is fine in the editor that's good, sounds like just a glitch in the Github UI

https://github.com/llvm/llvm-project/pull/70202