FormItem: add clearValidate (#11076)

examples/docs/en-US/form.md

@@ -884,3 +884,4 @@ All components in a Form inherit their `size` attribute from that Form. Similarl
 | Method | Description | Parameters |
 | ---- | ---- | ---- |
 | resetField | reset current field and remove validation result | — |
+| clearValidate | remove validation status of the field | -

examples/docs/es/form.md

@@ -889,3 +889,4 @@ Todos los componentes de un formulario heredan su atributo `size`. De manera sim
 | Metodo     | Descripción                              | Parametros |
 | ---------- | ---------------------------------------- | ---------- |
 | resetField | restablecer campo actual y eliminar resultado de validación | —          |
+| clearValidate | remove validation status of the field | - |

examples/docs/zh-CN/form.md

@@ -872,3 +872,4 @@ W3C 标准中有如下[规定](https://www.w3.org/MarkUp/html-spec/html-spec_8.h
 | 方法名      | 说明          | 参数
 |---------- |-------------- | --------------
 | resetField | 对该表单项进行重置，将其值重置为初始值并移除校验结果 | -
+| clearValidate | 移除该表单项的校验结果 | -

types/form-item.d.ts

@@ -28,4 +28,10 @@ export declare class ElFormItem extends ElementUIComponent {
 
   /** Controls the size of components in this form */
   size: ElementUIComponentSize
+
+  /** Reset current field and remove validation result */
+  resetField (): void
+
+  /** Remove validation status of the field */
+  clearValidate (): void
 }