Alexander A. Klimov 22bfcf9ac5 icinga2 daemon: remove no-op SIGCHLD handling
1. Don't set a custom handler for SIGCHLD (in the umbrella process)
   as that handler doesn't actually handle SIGCHLD anymore
2. Don't reset the SIGCHLD handler (in the worker process)
   as there's nothing to reset anymore due to the above change
3. Don't block SIGCHLD across fork(2) as its handler doesn't change anymore
   due to the above changes
2022-09-07 12:12:09 +02:00
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