改进验证提示

Author: liu21st

src/Validate.php

@@ -809,8 +809,6 @@ protected function checkItems($key, $rule, $data, $title): bool
             if (str_contains($name, '|')) {
                 // 字段|描述 用于指定属性名称
                 [$name, $title] = explode('|', $name);
-            } else {
-                $title = $this->field[$name] ?? $name;
             }
 
             $values = $this->getDataSet($data, $name);