src: remove unnecessary Reset() calls

The previous commit made persistent handles auto-reset on destruction.
This commit removes the Reset() calls that are now no longer necessary.

PR-URL: https://github.com/nodejs/node/pull/18656


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>