Required for other potential changes.
This should make it so we can always just check _destroyed to
check if a timer has been ended.
PR-URL: https://github.com/nodejs/node/pull/29595
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
