Tests: Remove erroneous connector settings from rest-settings-controller

The connectors API key entries were incorrectly introduced during the
trunk merge. Trunk does not include them in this test's expected array
since the settings are dynamically registered and not present in the
test context.

Author: josephfusco

tests/phpunit/tests/rest-api/rest-settings-controller.php

@@ -120,10 +120,6 @@ public function test_get_items() {
 			'default_comment_status',
 			'site_icon', // Registered in wp-includes/blocks/site-logo.php
 			'wp_enable_real_time_collaboration',
-			// Connectors API keys are registered in _wp_register_default_connector_settings() in wp-includes/connectors.php.
-			'connectors_ai_anthropic_api_key',
-			'connectors_ai_google_api_key',
-			'connectors_ai_openai_api_key',
 		);
 
 		if ( ! is_multisite() ) {