[llvm] [InstCombine] Abandon BranchProbabilityAnalysis cache result (PR #86470)

[Nikita Popov via llvm-commits]

https://github.com/nikic requested changes to this pull request.

The change InstCombine does to the CFG is trivial -- can we update the analysis instead?

https://github.com/llvm/llvm-project/pull/86470