tools: remove obsolete entries from license

The LICENSE file has a few entries for things that no longer ship with
the code base. They are installed via npm instead. Remove them from the
license file.

Running the license builder on a fresh checkout will
result in errors until this change lands, since the necessary
information is not in the source tree until the `npm install` happens.

PR-URL: https://github.com/nodejs/node/pull/21979


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Yuta Hiroto <hello@hiroppy.me>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>