[llvm] [memprof] Omit the key length for the record table (PR #89527)

[Snehasish Kumar via llvm-commits]

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

LGTM, the function GUID based key for records has worked well so far. I don't think we will change that.

https://github.com/llvm/llvm-project/pull/89527