Remove redundant code

osu.Game/Input/Bindings/GlobalActionContainer.cs

@@ -68,13 +68,14 @@ namespace osu.Game.Input.Bindings
         DecreaseVolume,
         [Description("Toggle mute")]
         ToggleMute,
-        [Description("Take screenshot")]
-        TakeScreenshot,
 
         // In-Game Keybindings
         [Description("Skip Cutscene")]
         SkipCutscene,
         [Description("Quick Retry (Hold)")]
         QuickRetry,
+
+        [Description("Take screenshot")]
+        TakeScreenshot
     }
 }

osu.Game/OsuGame.cs

@@ -81,8 +81,6 @@ namespace osu.Game
         private Bindable<int> configRuleset;
         public Bindable<RulesetInfo> Ruleset = new Bindable<RulesetInfo>();
 
-        private ScreenshotManager screenshotManager;
-
         private Bindable<int> configSkin;
 
         private readonly string[] args;
@@ -220,7 +218,7 @@ namespace osu.Game
                 },
                 mainContent = new Container { RelativeSizeAxes = Axes.Both },
                 overlayContent = new Container { RelativeSizeAxes = Axes.Both, Depth = float.MinValue },
-                screenshotManager = new ScreenshotManager()
+                new ScreenshotManager()
             });
 
             loadComponentSingleFile(screenStack = new Loader(), d =>

osu.Game/Overlays/Settings/Sections/Graphics/DetailSettings.cs

@@ -1,5 +1,6 @@
 // Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Game.Configuration;
@@ -25,7 +26,7 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
                     LabelText = "Rotate cursor when dragging",
                     Bindable = config.GetBindable<bool>(OsuSetting.CursorRotation)
                 },
-                new SettingsEnumDropdown<ScreenshotFormat>()
+                new SettingsEnumDropdown<ScreenshotFormat>
                 {
                     LabelText = "Screenshot format",
                     Bindable = config.GetBindable<ScreenshotFormat>(OsuSetting.ScreenshotFormat)