Fix error-level inspections.

osu.Desktop.VisualTests/Tests/TestCaseHitObjects.cs

@@ -13,7 +13,6 @@ using osu.Game.Modes.Osu.Objects.Drawables;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Graphics.UserInterface;
-using osu.Game.Modes.Objects;
 using OpenTK.Graphics;
 
 namespace osu.Desktop.VisualTests.Tests

osu.Game.Modes.Catch/CatchRuleset.cs

@@ -2,7 +2,6 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using System.Collections.Generic;
-using osu.Framework.Input;
 using osu.Game.Graphics;
 using osu.Game.Modes.Catch.UI;
 using osu.Game.Modes.Objects;
@@ -82,7 +81,7 @@ namespace osu.Game.Modes.Catch
 
         public override FontAwesome Icon => FontAwesome.fa_osu_fruits_o;
 
-        public override ScoreProcessor CreateScoreProcessor(int hitObjectCount) => null;
+        public override ScoreProcessor CreateScoreProcessor(int hitObjectCount = 0) => null;
 
         public override HitObjectParser CreateHitObjectParser() => new NullHitObjectParser();
 

osu.Game.Modes.Catch/UI/CatchPlayfield.cs

@@ -4,7 +4,6 @@
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Game.Modes.Catch.Objects;
-using osu.Game.Modes.Objects.Drawables;
 using osu.Game.Modes.UI;
 using OpenTK;
 

osu.Game.Modes.Mania/ManiaRuleset.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 osu.Framework.Input;
 using System.Collections.Generic;
 using osu.Game.Graphics;
 using osu.Game.Modes.Mania.UI;
@@ -98,7 +97,7 @@ namespace osu.Game.Modes.Mania
 
         public override FontAwesome Icon => FontAwesome.fa_osu_mania_o;
 
-        public override ScoreProcessor CreateScoreProcessor(int hitObjectCount) => null;
+        public override ScoreProcessor CreateScoreProcessor(int hitObjectCount = 0) => null;
 
         public override HitObjectParser CreateHitObjectParser() => new NullHitObjectParser();
 

osu.Game.Modes.Mania/UI/ManiaPlayfield.cs

@@ -4,7 +4,6 @@
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Game.Modes.Mania.Objects;
-using osu.Game.Modes.Objects.Drawables;
 using osu.Game.Modes.UI;
 using OpenTK;
 using OpenTK.Graphics;

osu.Game.Modes.Osu/OsuRuleset.cs

@@ -3,7 +3,6 @@
 
 using System.Collections.Generic;
 using System.Linq;
-using osu.Framework.Input;
 using osu.Game.Beatmaps;
 using osu.Game.Graphics;
 using osu.Game.Modes.Objects;

osu.Game.Modes.Taiko/TaikoRuleset.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 osu.Framework.Input;
 using System.Collections.Generic;
 using osu.Game.Graphics;
 using osu.Game.Modes.Objects;
@@ -82,7 +81,7 @@ namespace osu.Game.Modes.Taiko
 
         public override FontAwesome Icon => FontAwesome.fa_osu_taiko_o;
 
-        public override ScoreProcessor CreateScoreProcessor(int hitObjectCount) => null;
+        public override ScoreProcessor CreateScoreProcessor(int hitObjectCount = 0) => null;
 
         public override HitObjectParser CreateHitObjectParser() => new NullHitObjectParser();
 

osu.Game.Modes.Taiko/UI/TaikoPlayfield.cs

@@ -5,7 +5,6 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Graphics.Textures;
-using osu.Game.Modes.Objects.Drawables;
 using osu.Game.Modes.Taiko.Objects;
 using osu.Game.Modes.UI;
 using OpenTK;

osu.Game/Database/BeatmapDatabase.cs

@@ -6,7 +6,6 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Linq.Expressions;
-using System.Security.Cryptography;
 using osu.Framework.Extensions;
 using osu.Framework.Logging;
 using osu.Framework.Platform;

osu.Game/Modes/Mod.cs

@@ -4,7 +4,6 @@
 using System;
 using System.ComponentModel;
 using osu.Game.Graphics;
-using osu.Game.Modes.UI;
 using osu.Game.Screens.Play;
 
 namespace osu.Game.Modes

osu.Game/Modes/Ruleset.cs

@@ -6,7 +6,6 @@ using osu.Game.Modes.Objects;
 using osu.Game.Modes.UI;
 using System;
 using System.Collections.Concurrent;
-using osu.Framework.Input;
 using osu.Game.Beatmaps;
 using osu.Game.Graphics;
 using osu.Game.Screens.Play;

osu.Game/Modes/Score.cs

@@ -1,9 +1,7 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
-using osu.Framework.Input.Handlers;
 using osu.Game.Database;
-using SQLite.Net;
 
 namespace osu.Game.Modes
 {

osu.Game/Modes/UI/HitRenderer.cs

@@ -7,7 +7,6 @@ using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Framework.Input;
 using osu.Game.Modes.Objects;
 using osu.Game.Modes.Objects.Drawables;
 using osu.Game.Beatmaps;

osu.Game/Modes/UI/Playfield.cs

@@ -5,7 +5,6 @@ using osu.Framework.Allocation;
 using OpenTK;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Framework.Input;
 using osu.Game.Modes.Objects;
 using osu.Game.Modes.Objects.Drawables;
 using osu.Game.Screens.Play;
@@ -31,8 +30,6 @@ namespace osu.Game.Modes.UI
 
         protected override Container<Drawable> Content { get; }
 
-        private Container content;
-
         public Playfield()
         {
             AddInternal(scaledContent = new ScaledContainer
@@ -40,7 +37,7 @@ namespace osu.Game.Modes.UI
                 RelativeSizeAxes = Axes.Both,
                 Children = new[]
                 {
-                    content = new Container
+                    Content = new Container
                     {
                         RelativeSizeAxes = Axes.Both,
                     }
@@ -64,9 +61,9 @@ namespace osu.Game.Modes.UI
             if (InputManager != null)
             {
                 //if we've been provided an InputManager, we want it to sit inside the scaledcontainer 
-                scaledContent.Remove(content);
+                scaledContent.Remove(Content);
                 scaledContent.Add(InputManager);
-                InputManager.Add(content);
+                InputManager.Add(Content);
             }
         }
 

osu.Game/Screens/Play/PlayerInputManager.cs

@@ -6,9 +6,7 @@ using osu.Framework.Configuration;
 using osu.Framework.Input;
 using osu.Game.Configuration;
 using System.Linq;
-using osu.Framework.Input.Handlers;
 using osu.Framework.Timing;
-using osu.Game.Beatmaps;
 using osu.Game.Input.Handlers;
 using OpenTK.Input;
 using KeyboardState = osu.Framework.Input.KeyboardState;