Remove outdated GitHub reference in custom-html-widgets.js comment

[mayur8991]

In wp-admin/js/widgets/custom-html-widgets.js (around line 336),
there is a comment referencing the following URL:

https://github.com/xwp/wordpress-develop/pull/247/commits/5322387d

The link currently returns a 404 error and appears to reference a
non-official fork of WordPress.

Since the link is no longer accessible and does not provide useful
context, it may cause confusion for developers reviewing the code.

It would be good to remove the outdated URL from the comment to
improve code clarity and maintainability.

[sabernhardt]

​Line 336 was part of [41376].

The ​Wayback archive points to #41596 (which leads to 41596.1.diff and [41260]).

cc: @westonruter

[westonruter]

In 61627:

Docs: Update broken link in core merge comment.

Follow-up to [41376], [41260].

Props mayur8991, sabernhardt, westonruter.
Fixes #64632.

[westonruter]

@sabernhardt Thank you for digging up the historical context for that. I was tempted to go ahead and remove the wp.customize condition per the comment, but it has been so many years that I don't feel confident to make the change without immersing myself again. And given that the Customizer is now suppressed, as well as these classic widgets, it seems best to leave them be.

[sabernhardt]

I was tempted to go ahead and remove the wp.customize condition per the comment, but it has been so many years that I don't feel confident to make the change without immersing myself again. And given that the Customizer is now suppressed, as well as these classic widgets, it seems best to leave them be.

Good idea.