Remove some warnings (#5391)

* Remove unused Dependency fields

* Remove noop null check

Content.Client/Administration/AdminSystem.cs

@@ -14,8 +14,6 @@ namespace Content.Client.Administration
 {
     public partial class AdminSystem : EntitySystem
     {
-        [Dependency] private readonly IPlayerManager _playerManager = default!;
-
         public event Action<List<PlayerInfo>>? PlayerListChanged;
 
         private Dictionary<NetUserId, PlayerInfo>? _playerList;

Content.Client/Atmos/Overlays/AtmosDebugOverlay.cs

@@ -16,7 +16,6 @@ namespace Content.Client.Atmos.Overlays
 
         [Dependency] private readonly IMapManager _mapManager = default!;
         [Dependency] private readonly IEyeManager _eyeManager = default!;
-        [Dependency] private readonly IClyde _clyde = default!;
 
         public override OverlaySpace Space => OverlaySpace.WorldSpace;
 

Content.Client/Construction/UI/ConstructionMenuPresenter.cs

@@ -29,7 +29,6 @@ namespace Content.Client.Construction.UI
     {
         [Dependency] private readonly IEntitySystemManager _systemManager = default!;
         [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
-        [Dependency] private readonly IResourceCache _resourceCache = default!;
         [Dependency] private readonly IPlacementManager _placementManager = default!;
 
         private readonly IGameHud _gameHud;

Content.Client/Items/Managers/ItemSlotManager.cs

@@ -26,7 +26,6 @@ namespace Content.Client.Items.Managers
     {
         [Dependency] private readonly IGameTiming _gameTiming = default!;
         [Dependency] private readonly IEntitySystemManager _entitySystemManager = default!;
-        [Dependency] private readonly IUserInterfaceManager _uiMgr = default!;
         [Dependency] private readonly IEntityManager _entityManager = default!;
 
         private readonly HashSet<EntityUid> _highlightEntities = new();

Content.Server/Chemistry/EntitySystems/ReagentDispenserSystem.cs

@@ -13,7 +13,6 @@ namespace Content.Server.Chemistry.EntitySystems
     [UsedImplicitly]
     public class ReagentDispenserSystem : EntitySystem
     {
-        [Dependency] private readonly SolutionContainerSystem _solutionContainerSystem = default!;
         [Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
 
         public override void Initialize()

Content.Server/Construction/Components/MachineComponent.cs

@@ -88,9 +88,6 @@ namespace Content.Server.Construction.Components
             {
                 var stack = EntitySystem.Get<StackSystem>().Spawn(amount, stackType, Owner.Transform.Coordinates);
 
-                if (stack == null)
-                    throw new Exception($"Couldn't spawn stack of type {stackType}!");
-
                 if (!partContainer.Insert(Owner.EntityManager.GetEntity(stack)))
                     throw new Exception($"Couldn't insert machine material of type {stackType} to machine with prototype {Owner.Prototype?.ID ?? "N/A"}");
             }

Content.Server/Disposal/Tube/Components/DisposalTubeComponent.cs

@@ -23,8 +23,6 @@ namespace Content.Server.Disposal.Tube.Components
 {
     public abstract class DisposalTubeComponent : Component, IDisposalTubeComponent, IBreakAct
     {
-        [Dependency] private readonly IMapManager _mapManager = default!;
-
         public static readonly TimeSpan ClangDelay = TimeSpan.FromSeconds(0.5);
         public TimeSpan LastClang;
 

Content.Server/Electrocution/ElectrocutionSystem.cs

@@ -39,7 +39,6 @@ namespace Content.Server.Electrocution
         [Dependency] private readonly IEntityLookup _entityLookup = default!;
         [Dependency] private readonly IRobustRandom _random = default!;
         [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
-        [Dependency] private readonly IConsoleHost _consoleHost = default!;
         [Dependency] private readonly StatusEffectsSystem _statusEffectsSystem = default!;
         [Dependency] private readonly SharedJitteringSystem _jitteringSystem = default!;
         [Dependency] private readonly SharedStunSystem _stunSystem = default!;

Content.Server/Pointing/EntitySystems/PointingSystem.cs

@@ -32,7 +32,6 @@ namespace Content.Server.Pointing.EntitySystems
         [Dependency] private readonly IPlayerManager _playerManager = default!;
         [Dependency] private readonly ITileDefinitionManager _tileDefinitionManager = default!;
         [Dependency] private readonly IGameTiming _gameTiming = default!;
-        [Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
         [Dependency] private readonly RotateToFaceSystem _rotateToFaceSystem = default!;
 
         private static readonly TimeSpan PointDelay = TimeSpan.FromSeconds(0.5f);

Content.Server/Verbs/VerbSystem.cs

@@ -8,8 +8,6 @@ namespace Content.Server.Verbs
 {
     public sealed class VerbSystem : SharedVerbSystem
     {
-        [Dependency] private readonly IPlayerManager _playerManager = default!;
-
         public override void Initialize()
         {
             base.Initialize();