Block Editor: Include the fixes targetted for WordPress 5.8 RC3.

This includes the following fixes:
 - Safari: see if compositing layer size is more reasonable when position fixed divs are not inserted into content.
 - Site Logo Block: update Site Logo block UI and option syncing.
 - Fix moving inner blocks in the Widgets Customizer.
 - Allow themes to provide empty values for color.duotone and spacing.units
 - Update getTermsInfo() to workaround parsing issue for translatable strings.
 - Specify what settings can be part of settings.layout.
 - Update conditions to hide duotone panel.
 - Prevent entering invalid values in the Query Loop block config.
 - Prevent color panel from showing as empty.
 - Avoid calling gutenberg_ functions within code shipped through WordPress Core.

Props desrosj.
See #53397.


git-svn-id: https://develop.svn.wordpress.org/trunk@51421 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/blocks/post-template.php

@@ -86,63 +86,3 @@ function register_block_core_post_template() {
 	);
 }
 add_action( 'init', 'register_block_core_post_template' );
-
-/**
- * Renders the legacy `core/query-loop` block on the server.
- * It triggers a developer warning and then calls the renamed
- * block's `render_callback` function output.
- *
- * This can be removed when WordPress 5.9 is released.
- *
- * @param array    $attributes Block attributes.
- * @param string   $content    Block default content.
- * @param WP_Block $block      Block instance.
- *
- * @return string Returns the output of the query, structured using the layout defined by the block's inner blocks.
- */
-function render_legacy_query_loop_block( $attributes, $content, $block ) {
-	trigger_error(
-		/* translators: %1$s: Block type */
-		sprintf( __( 'Block %1$s has been renamed to Post Template. %1$s will be supported until WordPress version 5.9.' ), $block->name ),
-		headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE
-	);
-	return render_block_core_post_template( $attributes, $content, $block );
-}
-
-/**
- * Complements the renaming of `Query Loop` to `Post Template`.
- * This ensures backwards compatibility for any users running the Gutenberg
- * plugin who have used Query Loop prior to its renaming.
- *
- * This can be removed when WordPress 5.9 is released.
- *
- * @see https://github.com/WordPress/gutenberg/pull/32514
- */
-function gutenberg_register_legacy_query_loop_block() {
-	$registry = WP_Block_Type_Registry::get_instance();
-	if ( $registry->is_registered( 'core/query-loop' ) ) {
-		unregister_block_type( 'core/query-loop' );
-	}
-	register_block_type(
-		'core/query-loop',
-		array(
-			'category'          => 'design',
-			'uses_context'      => array(
-				'queryId',
-				'query',
-				'queryContext',
-				'displayLayout',
-				'templateSlug',
-			),
-			'supports'          => array(
-				'reusable' => false,
-				'html'     => false,
-				'align'    => true,
-			),
-			'style'             => 'wp-block-post-template',
-			'render_callback'   => 'render_legacy_query_loop_block',
-			'skip_inner_blocks' => true,
-		)
-	);
-}
-add_action( 'init', 'gutenberg_register_legacy_query_loop_block' );