refactor: dont need delete function

public/src/admin/manage/users/custom-fields.js

@@ -22,12 +22,7 @@ define('admin/manage/user/custom-fields', ['bootbox', 'alerts', 'jquery-ui/widge
 				if (!ok) {
 					return;
 				}
-				socket.emit('admin.user.deleteCustomField', key, (err) => {
-					if (err) {
-						return alerts.error(err);
-					}
-					row.remove();
-				});
+				row.remove();
 			});
 		});
 

src/socket.io/admin/user.js

@@ -204,7 +204,3 @@ User.saveCustomFields = async function (socket, fields) {
 	await user.reloadCustomFieldWhitelist();
 };
 
-User.deleteCustomField = async function (socket, key) {
-	await db.sortedSetRemove(`user-custom-fields`, key);
-	await db.delete(`user-custom-field:${key}`);
-};