Slipping, now with 20% more ecs (#4310)

* Slipping, now with 20% more ecs

* vereview

Content.Client/Slippery/SlipperySystem.cs

@@ -0,0 +1,9 @@
+using Content.Shared.Slippery;
+
+namespace Content.Client.Slippery
+{
+    internal sealed class SlipperySystem : SharedSlipperySystem
+    {
+        protected override void PlaySound(SlipperyComponent component) {}
+    }
+}