refactor: use async/await

src/socket.io/admin/config.js

@@ -45,6 +45,6 @@ Config.setMultiple = async function (socket, data) {
 	}
 };
 
-Config.remove = function (socket, key, callback) {
+Config.remove = async function (socket, key) {
-	meta.configs.remove(key, callback);
+	await meta.configs.remove(key);
 };

src/socket.io/admin/errors.js

@@ -4,6 +4,6 @@ const meta = require('../../meta');
 
 const Errors = module.exports;
 
-Errors.clear = function (socket, data, callback) {
+Errors.clear = async function () {
-	meta.errors.clear(callback);
+	await meta.errors.clear();
 };