hellofromTonya 13195cfe8e Editor: Partial revert of r55230.
[55230] introduced a regression to the content markup. This changeset is a partial revert to remove the added `wp-includes/block-supports/anchor.php` file. 

The change of adding `'id'` to `$attributes_to_merge` in `get_block_wrapper_attributes()` is not reverted as this change did not impact the regression and helps to support continue development in Gutenberg for the anchor support in dynamic blocks feature.

Reference:
* [https://github.com/WordPress/gutenberg/pull/48592 Gutenberg PR 48592].

Follow-up [55230].

Props wildworks, mamaduka, hellofromTonya. 
Fixes #57830.
See #56852.
Built from https://develop.svn.wordpress.org/trunk@55443


git-svn-id: http://core.svn.wordpress.org/trunk@54976 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2023-03-01 15:05:19 +00:00
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