test: remove outdated, non-functioning test

The timers directory test, utilizing FakeTime, has not worked in
quite a while and is not truly testing Node.js behaviour. If a
similar test is necessary it would be better suited to libuv
on which Node.js relies for timers functionality.

PR-URL: https://github.com/nodejs/node/pull/20894
Fixes: https://github.com/nodejs/node/issues/10154


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>