Coding Standards: Remove some extra whitespace in get_item_schema.

Introduced in [50527].

See #52627.

git-svn-id: https://develop.svn.wordpress.org/trunk@50632 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/rest-api/endpoints/class-wp-rest-block-types-controller.php

@@ -385,7 +385,7 @@ class WP_REST_Block_Types_Controller extends WP_REST_Controller {
 			),
 		);
 
-		$example_definition      = array(
+		$example_definition = array(
 			'description' => __( 'Block example.' ),
 			'type'        => array( 'object', 'null' ),
 			'default'     => null,