remove all useless header comments (#3363)

see #3358

used command: `find ./ -type f -exec perl -i -0pe
's/\/\*\s*magicmirror.*?\*\/\s*//si' {} \;`

This is a first draft, I think we should preserve some of the comments.

modules/default/newsfeed/newsfeed.js

@@ -1,9 +1,3 @@
-/* MagicMirror²
- * Module: NewsFeed
- *
- * By Michael Teeuw https://michaelteeuw.nl
- * MIT Licensed.
- */
 Module.register("newsfeed", {
 	// Default module config.
 	defaults: {

modules/default/newsfeed/newsfeedfetcher.js

@@ -1,10 +1,3 @@
-/* MagicMirror²
- * Node Helper: Newsfeed - NewsfeedFetcher
- *
- * By Michael Teeuw https://michaelteeuw.nl
- * MIT Licensed.
- */
-
 const crypto = require("node:crypto");
 const stream = require("node:stream");
 const FeedMe = require("feedme");

modules/default/newsfeed/node_helper.js

@@ -1,10 +1,3 @@
-/* MagicMirror²
- * Node Helper: Newsfeed
- *
- * By Michael Teeuw https://michaelteeuw.nl
- * MIT Licensed.
- */
-
 const NodeHelper = require("node_helper");
 const Log = require("logger");
 const NewsfeedFetcher = require("./newsfeedfetcher");