Editor: Revert [56316].

This reverts [56316] as it needs to be fixed by updating npm packages.

Unprops audrasjb.
Props swissspidy.
See #58920.



Built from https://develop.svn.wordpress.org/trunk@56317


git-svn-id: http://core.svn.wordpress.org/trunk@55829 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/blocks/template-part.php

@@ -250,7 +250,7 @@ function build_template_part_block_instance_variations() {
 				'area'  => $template_part->area,
 			),
 			'scope'       => array( 'inserter' ),
-			'icon'        => isset( $icon_by_area[ $template_part->area ] ) ? $icon_by_area[ $template_part->area ] : null,
+			'icon'        => $icon_by_area[ $template_part->area ],
 			'example'     => array(
 				'attributes' => array(
 					'slug'  => $template_part->slug,

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4-alpha-56316';
+$wp_version = '6.4-alpha-56317';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.