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;

Content.Client/Clothing/Systems/ChameleonClothingSystem.cs

@@ -11,8 +11,6 @@ namespace Content.Client.Clothing.Systems;
 // All valid items for chameleon are calculated on client startup and stored in dictionary.
 public sealed class ChameleonClothingSystem : SharedChameleonClothingSystem
 {
-    [Dependency] private readonly IPrototypeManager _proto = default!;
-
     public override void Initialize()
     {
         base.Initialize();

Content.Client/Movement/Systems/JetpackSystem.cs

@@ -16,7 +16,6 @@ public sealed class JetpackSystem : SharedJetpackSystem
     [Dependency] private readonly ClothingSystem _clothing = default!;
     [Dependency] private readonly SharedTransformSystem _transform = default!;
     [Dependency] private readonly SharedMapSystem _mapSystem = default!;
-    [Dependency] private readonly SpriteSystem _sprite = default!;
 
     public override void Initialize()
     {