Cleanup unused/redundant dependencies (#38099)

Content.Client/Actions/ActionsSystem.cs

@@ -32,7 +32,6 @@ namespace Content.Client.Actions
         [Dependency] private readonly IPlayerManager _playerManager = default!;
         [Dependency] private readonly IPrototypeManager _proto = default!;
         [Dependency] private readonly IResourceManager _resources = default!;
-        [Dependency] private readonly ISerializationManager _serialization = default!;
         [Dependency] private readonly MetaDataSystem _metaData = default!;
 
         public event Action<EntityUid>? OnActionAdded;