fix: 修正一些重复的英文内容

public/docs/ts/latest/guide/forms.jade

@@ -648,30 +648,24 @@ table
       p 控件已经被访问过
     td
       p <code>ng-touched</code>
-      p <code>ng-touched</code>
     td
       p <code>ng-untouched</code>
-      p <code>ng-untouched</code>
   tr
     td
       p Control's value has changed
       p 控件值已经变化
     td
       p <code>ng-dirty</code>
-      p <code>ng-dirty</code>
     td
       p <code>ng-pristine</code>
-      p <code>ng-pristine</code>
   tr
     td
       p Control's value is valid
       p 控件值是有效的
     td
       p <code>ng-valid</code>
-      p <code>ng-valid</code>
     td
       p <code>ng-invalid</code>
-      p <code>ng-invalid</code>
 :marked
   Let's temporarily add a [template reference variable](./template-syntax.html#ref-vars) named `spy`
   to the _Name_ `<input>` tag and use it to display the input's CSS classes.

public/docs/ts/latest/guide/template-syntax.jade

@@ -574,8 +574,6 @@ table
       p Interpolation
       p 插值表达式
       p Property
-      p Property
-      p Attribute
       p Attribute
       p Class
       p 类
@@ -825,7 +823,6 @@ table
   tr
     td
       p Property
-      p Property
     td
       p Element property
       p 元素的 property

public/docs/ts/latest/guide/testing.jade

@@ -28,17 +28,8 @@ a#top
   * [A simple component test](#simple-component-test)
     - [_TestBed_](#testbed)
     - [_configureTestingModule_](#configure-testing-module)
-
-    - [_configureTestingModule_](#configure-testing-module)
-
     - [_createComponent_](#create-component)
-
-    - [_createComponent_](#create-component)
-
     - [_ComponentFixture_, _DebugElement_, _query(By.css)_](#component-fixture)
-
-    - [_ComponentFixture_, _DebugElement_, _query(By.css)_](#component-fixture)
-
     - [_detectChanges_](#detect-changes)
     - [_ComponentFixtureAutoDetect _](#auto-detect-changes)
   * [Test a component with an external template](#component-with-external-template)
@@ -60,9 +51,6 @@ a#top
     - [_whenStable_](#when-stable)
     - [_fakeAsync_](#fake-async)
     - [_tick_](#tick)
-
-    - [_tick_](#tick)
-
     - [_jasmine.done_](#jasmine-done)
   * [Test a component with inputs and outputs](#component-with-input-output)
     - [_triggerEventHandler_](#trigger-event-handler)
@@ -110,10 +98,6 @@ a#top
 
     - [_TestBed_](#testbed-class-summary)
 
-    - [_TestBed_](#testbed-class-summary)
-
-    - [_ComponentFixture_](#component-fixture-api-summary)
-
     - [_ComponentFixture_](#component-fixture-api-summary)
 
     - [_DebugElement_](#debug-element-details)