NPC wake / sleep cleanup (#5679)

Content.Shared/MobState/Components/MobStateComponent.cs

@@ -311,11 +311,8 @@ namespace Content.Shared.MobState.Components
             state.EnterState(OwnerUid, Owner.EntityManager);
             state.UpdateState(OwnerUid, threshold, Owner.EntityManager);
 
-            var message = new MobStateChangedMessage(this, old, state);
-#pragma warning disable 618
-            SendMessage(message);
-#pragma warning restore 618
-            Owner.EntityManager.EventBus.RaiseEvent(EventSource.Local, message);
+            var message = new MobStateChangedEvent(this, old, state);
+            Owner.EntityManager.EventBus.RaiseLocalEvent(OwnerUid, message);
 
             Dirty();
         }

Content.Shared/MobState/MobStateChangedEvent.cs

@@ -4,11 +4,9 @@ using Robust.Shared.GameObjects;
 
 namespace Content.Shared.MobState
 {
-#pragma warning disable 618
-    public class MobStateChangedMessage : ComponentMessage
-#pragma warning restore 618
+    public class MobStateChangedEvent : EntityEventArgs
     {
-        public MobStateChangedMessage(
+        public MobStateChangedEvent(
             MobStateComponent component,
             IMobState? oldMobState,
             IMobState currentMobState)