Fixing some warnings (#6250)

Co-authored-by: Paul Ritter <ritter.paul1@googlemail.com>

Content.Server/AI/Utility/NpcBehaviorManager.cs

@@ -28,7 +28,6 @@ namespace Content.Server.AI.Utility
     internal sealed class NpcBehaviorManager : INpcBehaviorManager
     {
         [Dependency] private readonly IDynamicTypeFactory _typeFactory = default!;
-        [Dependency] private readonly IEntityManager _entityManager = default!;
 
         private readonly NpcActionComparer _comparer = new();