Cleanup warnings: CS0414 (#38793)

Cleanup

Content.Server/Electrocution/ElectrocutionSystem.cs

@@ -40,7 +40,6 @@ namespace Content.Server.Electrocution;
 public sealed class ElectrocutionSystem : SharedElectrocutionSystem
 {
     [Dependency] private readonly IAdminLogManager _adminLogger = default!;
-    [Dependency] private readonly IMapManager _mapManager = default!;
     [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
     [Dependency] private readonly IRobustRandom _random = default!;
     [Dependency] private readonly DamageableSystem _damageable = default!;

Content.Server/Spider/SpiderSystem.cs

@@ -10,7 +10,6 @@ namespace Content.Server.Spider;
 public sealed class SpiderSystem : SharedSpiderSystem
 {
     [Dependency] private readonly PopupSystem _popup = default!;
-    [Dependency] private readonly EntityLookupSystem _lookup = default!;
     [Dependency] private readonly TurfSystem _turf = default!;
 
     /// <summary>

Content.Server/Worldgen/Systems/Debris/SimpleFloorPlanPopulatorSystem.cs

@@ -12,7 +12,6 @@ namespace Content.Server.Worldgen.Systems.Debris;
 public sealed class SimpleFloorPlanPopulatorSystem : BaseWorldSystem
 {
     [Dependency] private readonly IRobustRandom _random = default!;
-    [Dependency] private readonly ITileDefinitionManager _tileDefinition = default!;
     [Dependency] private readonly SharedMapSystem _map = default!;
     [Dependency] private readonly TurfSystem _turf = default!;
 

Content.Shared/Actions/ActionUpgradeSystem.cs

@@ -11,7 +11,6 @@ public sealed class ActionUpgradeSystem : EntitySystem
 {
     [Dependency] private readonly SharedActionsSystem _actions = default!;
     [Dependency] private readonly ActionContainerSystem _actionContainer = default!;
-    [Dependency] private readonly EntityManager _entityManager = default!;
 
     public override void Initialize()
     {