Bring back DrawableAvatar as a simple sprite

osu.Game/Users/Drawables/DrawableAvatar.cs

@@ -0,0 +1,39 @@
+// 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.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Graphics.Textures;
+
+namespace osu.Game.Users.Drawables
+{
+    [LongRunningLoad]
+    public class DrawableAvatar : Sprite
+    {
+        private readonly User user;
+
+        /// <summary>
+        /// A simple, non-interactable avatar sprite for the specified user.
+        /// </summary>
+        /// <param name="user">The user. A null value will get a placeholder avatar.</param>
+        public DrawableAvatar(User user = null)
+        {
+            this.user = user;
+
+            RelativeSizeAxes = Axes.Both;
+            FillMode = FillMode.Fit;
+            Anchor = Anchor.Centre;
+            Origin = Anchor.Centre;
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(LargeTextureStore textures)
+        {
+            if (user != null && user.Id > 1)
+                Texture = textures.Get($@"https://a.ppy.sh/{user.Id}");
+
+            Texture ??= textures.Get(@"Online/avatar-guest");
+        }
+    }
+}