Mime cleanup (#8433)

Content.Server/Delete/DeleteAfterTimeSystem.cs

@@ -0,0 +1,18 @@
+namespace Content.Server.Delete;
+
+public sealed class DeleteAfterTimeSystem : EntitySystem
+{
+    public override void Update(float frameTime)
+    {
+        base.Update(frameTime);
+
+        foreach (var comp in EntityQuery<DeleteAfterTimeComponent>())
+        {
+            comp.Accumulator += frameTime;
+            if (comp.Accumulator < comp.DespawnTime.TotalSeconds)
+                continue;
+
+            QueueDel(comp.Owner);
+        }
+    }
+}