[llvm] Revert "[BOLT][DWARF] Skip processing DWARF CUs with a DWO ID but no DWO name (#154749)" (PR #160664)

[Pavel Iliin via llvm-commits]

ilinpv wrote:

LGTM. The Bolt buildbot is on staging, I think it should be fine if we wait a couple of days - @Jinjie-Huang might push a quick fix.

https://github.com/llvm/llvm-project/pull/160664