Remove unused required parameter ItemToKey

src/Connected.Components/Components/Dropdown.razor.cs

@@ -16,9 +16,6 @@ public partial class Dropdown<T> : InputBase, IAsyncDisposable
 	[Parameter]
 	public RenderFragment<T>? SelectedValueTemplate { get; set; }
 
-	[Parameter, EditorRequired]
-	public Func<T, string> ItemToKey { get; set; } = default!;
-
 	[Parameter]
 	public ObservableCollection<T> SelectedItems { get; set; } = new();