Move async loading to a higher level to simplify logic

osu.Desktop.VisualTests/Tests/TestCaseMedalOverlay.cs

@@ -15,12 +15,12 @@ namespace osu.Desktop.VisualTests.Tests
         {
             AddStep(@"display", () =>
             {
-                Add(new MedalOverlay(new Medal
+                LoadComponentAsync(new MedalOverlay(new Medal
                 {
                     Name = @"Animations",
                     InternalName = @"all-intro-doubletime",
                     Description = @"More complex than you think.",
-                }));
+                }), Add);
             });
         }
     }

osu.Game/Overlays/MedalOverlay.cs

@@ -155,18 +155,20 @@ namespace osu.Game.Overlays
                 Radius = 50,
             };
 
-            LoadComponentAsync(drawableMedal = new DrawableMedal(medal)
+            disc.Add(drawableMedal = new DrawableMedal(medal)
             {
                 Anchor = Anchor.TopCentre,
                 Origin = Anchor.TopCentre,
                 RelativeSizeAxes = Axes.X,
-            }, m =>
-            {
-                disc.Add(m);
-                Show();
             });
         }
 
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+            Show();
+        }
+
         protected override void Update()
         {
             base.Update();