doc: 移除命名空间

Author: ArgoZhang

src/BootstrapBlazor/Components/ErrorLogger/BootstrapBlazorErrorBoundary.cs

@@ -6,7 +6,6 @@
 using Microsoft.AspNetCore.Components.Rendering;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Logging;
-using System;
 
 namespace BootstrapBlazor.Components;
 

src/BootstrapBlazor/Components/Filters/FilterContext.cs

@@ -3,8 +3,6 @@
 // See the LICENSE file in the project root for more information.
 // Maintainer: Argo Zhang([email protected]) Website: https://www.blazor.zone
 
-using System.Runtime.CompilerServices;
-
 namespace BootstrapBlazor.Components;
 
 /// <summary>