http: suppress data event if req aborted

Re-enable test-http-abort-stream-end and put it into parallel
category. Use system random port when calling server.listen()
and fix eslint errors.

After calling request.abort(), in order to avoid the buffered
data to trigger the 'data' event, explicitly remove 'data' event
listeners.

PR-URL: https://github.com/nodejs/node/pull/13260


Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>