Remove lost using

samples/ControlCatalog.Browser.Blazor/_Imports.razor

@@ -6,5 +6,4 @@
 @using Microsoft.AspNetCore.Components.Web.Virtualization
 @using Microsoft.AspNetCore.Components.WebAssembly.Http
 @using Microsoft.JSInterop
-@using ControlCatalog.Browser.Blazor.Shared
 @using SkiaSharp