Remove unused dependencies (#19490)

Content.Server/NPC/Systems/NPCSteeringSystem.cs

@@ -49,7 +49,6 @@ public sealed partial class NPCSteeringSystem : SharedNPCSteeringSystem
     [Dependency] private readonly IConfigurationManager _configManager = default!;
     [Dependency] private readonly IGameTiming _timing = default!;
     [Dependency] private readonly IMapManager _mapManager = default!;
-    [Dependency] private readonly IParallelManager _parallel = default!;
     [Dependency] private readonly IRobustRandom _random = default!;
     [Dependency] private readonly ClimbSystem _climb = default!;
     [Dependency] private readonly DoAfterSystem _doAfter = default!;