Removed GB refs

Author: ramonjd

tests/phpunit/tests/rest-api/rest-global-styles-controller.php

@@ -289,7 +289,7 @@ public function test_get_theme_item_subscriber_permission_check() {
 	}
 
 	/**
-	 * @covers WP_REST_Global_Styles_Controller_Gutenberg::get_theme_item
+	 * @covers WP_REST_Global_Styles_Controller::get_theme_item
 	 * @ticket 62042
 	 */
 	public function test_get_theme_item_editor_permission_check() {
@@ -633,7 +633,7 @@ public function test_update_item_invalid_styles_css() {
 	 * within a theme style variation and wouldn't be registered at the time
 	 * of saving via the API.
 	 *
-	 * @covers WP_REST_Global_Styles_Controller_Gutenberg::update_item
+	 * @covers WP_REST_Global_Styles_Controller::update_item
 	 * @ticket 61312
 	 * @ticket 61451
 	 */