[llvm] [NFC][VPlan] Simplify VPValue::removeUser (PR #74708)

[Florian Hahn via llvm-commits]

https://github.com/fhahn approved this pull request.

LGTM, thanks. 

Please see the inline comment before merging and also adjust the commit messages to be definitive, i.e. drop `It think` and adjust to say hat this is now using find + erase; there's no more explicit loop.

https://github.com/llvm/llvm-project/pull/74708