DO NOT MERGE: Revert "init: Add more diagnostics for signalfd hangs." am: e966e6e75f am: c49a090bad

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

Change-Id: I97a86838e2de57cda6d7179428feac172fba1362
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>