test: fix order of parameters to assert.strictEqual

Usage of assert.strictEqual in test-net-server-listen-remove-callback.js
incorrectly passes the expected value as the first argument
and actual value as the second argument.

PR-URL: https://github.com/nodejs/node/pull/23590


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>