[llvm] [PassBuilder] Remove LoopFullUnrollPass from before LoopVectorize in the FullLTO pipeline (PR #197176)

[Luke Lau via llvm-commits]

lukel97 wrote:

Can you go ahead and land this independently? It would be good to see all the pre-requisite PRs in tree so we can evaluate https://github.com/llvm/llvm-project/pull/195886 on its own before it lands. 

https://github.com/llvm/llvm-project/pull/197176