Remove setting.

osu.Game/Configuration/OsuConfigManager.cs

@@ -100,7 +100,6 @@ namespace osu.Game.Configuration
 
             Set(OsuSetting.IncreaseFirstObjectVisibility, true);
             Set(OsuSetting.GameplayDisableWinKey, true);
-            Set(OsuSetting.GameplayDisableOverlayActivation, true);
 
             // Update
             Set(OsuSetting.ReleaseStream, ReleaseStream.Lazer);
@@ -233,6 +232,5 @@ namespace osu.Game.Configuration
         HitLighting,
         MenuBackgroundSource,
         GameplayDisableWinKey,
-        GameplayDisableOverlayActivation
     }
 }