DO NOT MERGE: Revert "init: Add more diagnostics for signalfd hangs." am: e966e6e75f

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2059067

Change-Id: Ie185369b739ab1c39d2cdaac13272ac4b28ba76a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>