Remove unnecessary code from EmptyLayout.razor

Author: dimodi

rootcomponent/BlazorWebAppServer/Components/Layout/EmptyLayout.razor

@@ -1,16 +1,3 @@
 @inherits LayoutComponentBase
 
-@implements IDisposable
-
 @Body
-
-@code {
-    protected override Task OnInitializedAsync()
-    {
-        return base.OnInitializedAsync();
-    }
-
-    public void Dispose()
-    {
-    }
-}