Powernet Recalculation simplification (#1427)

Co-authored-by: py01 <pyronetics01@gmail.com>

Content.Server/GameObjects/EntitySystems/PowerNetSystem.cs

@@ -0,0 +1,19 @@
+using Content.Server.GameObjects.Components.Power.PowerNetComponents;
+using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.IoC;
+
+namespace Content.Server.GameObjects.EntitySystems
+{
+    public class PowerNetSystem : EntitySystem
+    {
+#pragma warning disable 649
+        [Dependency] private readonly IPowerNetManager _powerNetManager;
+#pragma warning restore 649
+
+        public override void Update(float frameTime)
+        {
+            base.Update(frameTime);
+            _powerNetManager.Update(frameTime);
+        }
+    }
+}