Remove ValidTypes from databased stored; explicitly expose query methods instead

osu.Game/Input/KeyBindingStore.cs

@@ -1,7 +1,6 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
-using System;
 using System.Collections.Generic;
 using System.Linq;
 using Microsoft.EntityFrameworkCore;
@@ -57,11 +56,6 @@ namespace osu.Game.Input
             }
         }
 
-        protected override Type[] ValidTypes => new[]
-        {
-            typeof(DatabasedKeyBinding)
-        };
-
         public List<KeyBinding> Query(int? rulesetId = null, int? variant = null) =>
             new List<KeyBinding>(Connection.DatabasedKeyBinding.Where(b => b.RulesetID == rulesetId && b.Variant == variant));