Undo effect logging changes (#40919)

* Undo effect logging changes

* remove ShouldLog

Content.Shared/EntityEffects/Effects/Transform/EmpEntityEffectSystem.cs

@@ -52,7 +52,5 @@ public sealed partial class Emp : EntityEffectBase<Emp>
     public override string EntityEffectGuidebookText(IPrototypeManager prototype, IEntitySystemManager entSys)
         => Loc.GetString("entity-effect-guidebook-emp-reaction-effect", ("chance", Probability));
 
-    public override bool ShouldLog => true;
-
-    public override LogImpact LogImpact => LogImpact.Medium;
+    public override LogImpact? Impact => LogImpact.Medium;
 }