remove unnecessary localisations

osu.Game/Localisation/EditorStrings.cs

@@ -209,16 +209,6 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString OpenDiscussionPage => new TranslatableString(getKey(@"open_discussion_page"), @"Open beatmap discussion page");
 
-        /// <summary>
-        /// "Difficulty"
-        /// </summary>
-        public static LocalisableString Difficulty => new TranslatableString(getKey(@"this_difficulty"), @"Difficulty");
-
-        /// <summary>
-        /// "Beatmapset"
-        /// </summary>
-        public static LocalisableString Beatmapset => new TranslatableString(getKey(@"this_beatmapset"), @"Beatmapset");
-
         private static string getKey(string key) => $@"{prefix}:{key}";
     }
 }

osu.Game/Rulesets/Edit/Checks/Components/CheckScope.cs

@@ -1,9 +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 osu.Framework.Localisation;
-using osu.Game.Localisation;
-
 namespace osu.Game.Rulesets.Edit.Checks.Components
 {
     public enum CheckScope
@@ -11,13 +8,11 @@ namespace osu.Game.Rulesets.Edit.Checks.Components
         /// <summary>
         /// Run checks that apply to the current difficulty.
         /// </summary>
-        [LocalisableDescription(typeof(EditorStrings), nameof(EditorStrings.Difficulty))]
         Difficulty,
 
         /// <summary>
         /// Run checks that apply to the beatmapset as a whole.
         /// </summary>
-        [LocalisableDescription(typeof(EditorStrings), nameof(EditorStrings.Beatmapset))]
         Beatmapset,
     }
 }