Merge "Revert "init: Add more diagnostics for signalfd hangs."" am: fa4926a9de am: ee599c860d

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2254119

Change-Id: Idbd3ec877cf7b022232cf80a5c295881eb438257
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>