[llvm-branch-commits] [InstCombine] Remove ProfcheckDisableMetadataFixes checks (PR #222409)

[Aiden Grossman via llvm-branch-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/222409

Our internal ablation study on the set of checks up to 2-11-2026 has
finished, so we can remove any fixes that are older than that.