src: remove unused `internalBinding('config')` properties

Remove the following properties:

- `preserveSymlinks`
- `preserveSymlinksMain`
- `experimentalModules`
- `userLoader`
- `experimentalVMModules`
- `experimentalREPLAwait`
- `exposeInternals`

We used to use them to pass cli option values from C++ into
JS, but now the values are obtained in JS land using
`require('internal/options').getOptionValue` instead so they
are unused.

Also removes `test/parallel/test-internal-modules-expose.js`
which tests `--expose-internals`.
We already have hundreds of tests depending on `--expose-internals`,
they are more than enough to test the functionality of the flag.

PR-URL: https://github.com/nodejs/node/pull/25463
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>

1 files changed, 0 insertions, 12 deletions

diff --git a/test/parallel/test-internal-modules-expose.js b/test/parallel/test-internal-modules-expose.js
deleted file mode 100644
index 5229032573..0000000000
--- a/test/parallel/test-internal-modules-expose.js
+++ /dev/null
@@ -1,12 +0,0 @@
-'use strict';
-// Flags: --expose_internals
-
-require('../common');
-const assert = require('assert');
-const { internalBinding } = require('internal/test/binding');
-const config = internalBinding('config');
-
-console.log(config, process.argv);
-
-assert.strictEqual(typeof require('internal/freelist').FreeList, 'function');
-assert.strictEqual(config.exposeInternals, true);