Delete outdated test

osu.Game.Tests/Visual/UserInterface/TestSceneSearchTextBox.cs

@@ -1,38 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-using NUnit.Framework;
-using osu.Framework.Graphics;
-using osu.Game.Graphics.UserInterface;
-using osuTK;
-
-namespace osu.Game.Tests.Visual.UserInterface
-{
-    public partial class TestSceneSearchTextBox : OsuTestScene
-    {
-        private SearchTextBox textBox = null!;
-
-        [SetUp]
-        public void SetUp() => Schedule(() =>
-        {
-            Child = textBox = new SearchTextBox
-            {
-                Anchor = Anchor.Centre,
-                Origin = Anchor.Centre,
-                Width = 400,
-                Scale = new Vector2(2f),
-                HoldFocus = true,
-            };
-        });
-
-        [Test]
-        public void TestSelectionOnFocus()
-        {
-            AddStep("set text", () => textBox.Text = "some text");
-            AddAssert("no text selected", () => textBox.SelectedText == string.Empty);
-            AddStep("hide text box", () => textBox.Hide());
-            AddStep("show text box", () => textBox.Show());
-            AddAssert("search text selected", () => textBox.SelectedText == textBox.Text);
-        }
-    }
-}