A few trait fixes (#16062)

Content.Shared/Speech/Muting/MutedComponent.cs

@@ -1,6 +0,0 @@
-namespace Content.Shared.Speech.Muting
-{
-    [RegisterComponent]
-    public sealed class MutedComponent : Component
-    {}
-}

Content.Shared/Speech/Muting/MutingSystem.cs

@@ -1,21 +0,0 @@
-using Content.Shared.Popups;
-using Robust.Shared.Player;
-
-namespace Content.Shared.Speech.Muting
-{
-    public sealed class MutingSystem : EntitySystem
-    {
-        [Dependency] private readonly SharedPopupSystem _popupSystem = default!;
-        public override void Initialize()
-        {
-            base.Initialize();
-            SubscribeLocalEvent<MutedComponent, SpeakAttemptEvent>(OnSpeakAttempt);
-        }
-
-        private void OnSpeakAttempt(EntityUid uid, MutedComponent component, SpeakAttemptEvent args)
-        {
-            _popupSystem.PopupEntity(Loc.GetString("speech-muted"), uid, uid);
-            args.Cancel();
-        }
-    }
-}