test: remove sequential/test-https-keep-alive-large-write.js

Remove a test that made a flawed assumption that a single
large buffer write can be interrupted by a timeout event.

PR-URL: #31499
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>