http,stream: make virtual methods throw an error

Make virtual methods throw an ERR_METHOD_NOT_IMPLEMENTED error instead
of emitting it.

The error is not recoverable and the only way to handle it is to
override the method.

PR-URL: https://github.com/nodejs/node/pull/31912
Refs: https://github.com/nodejs/node/pull/31818#pullrequestreview-359403469


Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>