[lld] [lld][symbol-ordering] Strip out llvm suffixes for orderfile (PR #102458)

[Egor Pasko via llvm-commits]

pasko wrote:

@MaskRay Can you please review this? This works for the orderfile pipeline used by Chrome on Android, though I do not have intuition of the kind of clients it can break.

@aeubanks FYI.

https://github.com/llvm/llvm-project/pull/102458