[clang] [llvm] [ConstantFold] Remove notional over-indexing fold (PR #93697)

[Nikita Popov via llvm-commits]

nikic wrote:

@aeubanks Following up on this comment: https://github.com/llvm/llvm-project/pull/89872#discussion_r1578582193 After looking into this a bit, I do think we can drop this and make things a good bit simpler :)

https://github.com/llvm/llvm-project/pull/93697