refactor: 撤销 Flip 方法

Author: ArgoZhang

src/BootstrapBlazor/Components/Camera/Camera.razor.cs

@@ -153,12 +153,6 @@ protected override async Task OnAfterRenderAsync(bool firstRender)
     /// <returns></returns>
     public Task Resize(int width, int height) => InvokeVoidAsync("resize", Id, width, height);
 
-    /// <summary>
-    /// 反转摄像头方法
-    /// </summary>
-    /// <returns></returns>
-    public Task Flip() => InvokeVoidAsync("flip", Id);
-
     /// <summary>
     /// 初始化设备方法
     /// </summary>