remove PHPCS comments not needed in core

requested in #6034 (comment)

src/wp-includes/rest-api/endpoints/class-wp-rest-font-faces-controller.php

@@ -103,7 +103,7 @@ public function register_routes() {
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return true|WP_Error True if the request has read access, WP_Error object otherwise.
 	 */
-	public function get_items_permissions_check( $request ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- required by parent class
+	public function get_items_permissions_check( $request ) {
 		$post_type = get_post_type_object( $this->post_type );
 
 		if ( ! current_user_can( $post_type->cap->read ) ) {

src/wp-includes/rest-api/endpoints/class-wp-rest-font-families-controller.php

@@ -29,7 +29,7 @@ class WP_REST_Font_Families_Controller extends WP_REST_Posts_Controller {
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return true|WP_Error True if the request has read access, WP_Error object otherwise.
 	 */
-	public function get_items_permissions_check( $request ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- required by parent class
+	public function get_items_permissions_check( $request ) { 
 		$post_type = get_post_type_object( $this->post_type );
 
 		if ( ! current_user_can( $post_type->cap->read ) ) {