material fix

docs/api/zh/materials/Material.html

@@ -76,7 +76,6 @@
 
 <h3>[property:Boolean clipShadows]</h3>
 <p>定义是否根据此材质上指定的剪裁平面剪切阴影。默认值为 *false*。
-    Defines whether to clip shadows according to the clipping planes specified on this material. Default is *false*.
 </p>
 
 <h3>[property:Boolean colorWrite]</h3>
@@ -258,9 +257,6 @@
 
 <h3>[method:null onBeforeCompile]( [param:Object shader], [param:WebGLRenderer renderer] )</h3>
 <p> 在编译着色器程序之前立即执行的可选回调。此函数使用着色器源代码作为参数。用于修改内置材料。
-    An optional callback that is executed immediately before the shader program is compiled.
-    This function is called with the shader source code as a parameter. Useful for the modification of built-in
-    materials.
 </p>
 
 <h3>[method:null setValues]( [param:object values] )</h3>