REST API: Remove unused variable `$api_root` from WP_Rest_Server->embed_links() method.

After [r36674] the variable `$api_root` is no longer used in this method and should be removed.

See #35803.
Built from https://develop.svn.wordpress.org/trunk@37021


git-svn-id: http://core.svn.wordpress.org/trunk@36988 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/rest-api/class-wp-rest-server.php

@@ -520,7 +520,6 @@ class WP_REST_Server {
 		}
 
 		$embedded = array();
-		$api_root = rest_url();
 
 		foreach ( $data['_links'] as $rel => $links ) {
 			// Ignore links to self, for obvious reasons.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-beta3-37020';
+$wp_version = '4.5-beta3-37021';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.