Remove obsolete LandscapeWithOverlay from ManiaMobileLayout

The enum value `LandscapeWithOverlay` was marked as obsolete and scheduled for removal.
This change removes the enum value, its corresponding UI filtering in `ManiaSettingsSubsection`, and the migration logic in `ManiaRulesetConfigManager`.

Author: google-labs-jules[bot]

osu.Game.Rulesets.Mania/Configuration/ManiaRulesetConfigManager.cs

@@ -14,7 +14,6 @@ public class ManiaRulesetConfigManager : RulesetConfigManager<ManiaRulesetSettin
         public ManiaRulesetConfigManager(SettingsStore? settings, RulesetInfo ruleset, int? variant = null)
             : base(settings, ruleset, variant)
         {
-            Migrate();
         }
 
         protected override void InitialiseDefaults()
@@ -28,19 +27,6 @@ protected override void InitialiseDefaults()
             SetDefault(ManiaRulesetSetting.TouchOverlay, false);
         }
 
-        public void Migrate()
-        {
-            var mobileLayout = GetBindable<ManiaMobileLayout>(ManiaRulesetSetting.MobileLayout);
-
-#pragma warning disable CS0618 // Type or member is obsolete
-            if (mobileLayout.Value == ManiaMobileLayout.LandscapeWithOverlay)
-#pragma warning restore CS0618 // Type or member is obsolete
-            {
-                mobileLayout.Value = ManiaMobileLayout.Landscape;
-                SetValue(ManiaRulesetSetting.TouchOverlay, true);
-            }
-        }
-
         public override TrackedSettings CreateTrackedSettings() => new TrackedSettings
         {
             new TrackedSetting<double>(ManiaRulesetSetting.ScrollSpeed,

osu.Game.Rulesets.Mania/ManiaMobileLayout.cs

@@ -1,10 +1,8 @@
 // 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 System;
 using osu.Framework.Localisation;
 using osu.Game.Localisation;
-using osu.Game.Rulesets.Mania.Configuration;
 
 namespace osu.Game.Rulesets.Mania
 {
@@ -18,8 +16,5 @@ public enum ManiaMobileLayout
 
         [LocalisableDescription(typeof(RulesetSettingsStrings), nameof(RulesetSettingsStrings.LandscapeExpandedColumns))]
         LandscapeExpandedColumns,
-
-        [Obsolete($"Use {nameof(ManiaRulesetSetting.TouchOverlay)} instead.")] // todo: can be removed 20260211
-        LandscapeWithOverlay,
     }
 }

osu.Game.Rulesets.Mania/ManiaSettingsSubsection.cs

@@ -1,8 +1,6 @@
 // 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 System;
-using System.Linq;
 using osu.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
@@ -65,9 +63,6 @@ private void load()
                 {
                     Caption = RulesetSettingsStrings.MobileLayout,
                     Current = config.GetBindable<ManiaMobileLayout>(ManiaRulesetSetting.MobileLayout),
-#pragma warning disable CS0618 // Type or member is obsolete
-                    Items = Enum.GetValues<ManiaMobileLayout>().Where(l => l != ManiaMobileLayout.LandscapeWithOverlay),
-#pragma warning restore CS0618 // Type or member is obsolete
                 }));
             }
         }