Remove the configuration in the editor because:

1. it's not that useful.
2. Should see the lyric config effect by mod.

osu.Game.Rulesets.Karaoke/Configuration/KaraokeRulesetEditConfigManager.cs

@@ -2,23 +2,13 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using osu.Game.Configuration;
-using osu.Game.Rulesets.Karaoke.Graphics.Sprites;
 
 namespace osu.Game.Rulesets.Karaoke.Configuration;
 
 public class KaraokeRulesetEditConfigManager : InMemoryConfigManager<KaraokeRulesetEditSetting>
 {
-    protected override void InitialiseDefaults()
-    {
-        base.InitialiseDefaults();
-
-        // Lyric display.
-        SetDefault(KaraokeRulesetEditSetting.DisplayTranslate, true);
-    }
 }
 
 public enum KaraokeRulesetEditSetting
 {
-    // Lyric display type
-    DisplayTranslate,
 }

osu.Game.Rulesets.Karaoke/Edit/KaraokeHitObjectComposer.cs

@@ -151,10 +151,7 @@ protected void CreateMenuBar()
             {
                 new("Config")
                 {
-                    Items = new MenuItem[]
-                    {
-                        new LyricDisplayPreviewMenuItem(editConfigManager, "Lyric display preview"),
-                    },
+                    Items = Array.Empty<MenuItem>(),
                 },
                 new("Tools")
                 {