Resolve all non-obsoleting warnings in content (#27934)

* Resolve all non-obsoleting warnings in content

* Update ClientGameTicker.cs

* Update SkeletonAccentSystem.cs

* Update BwoinkSystem.cs

Content.Server/Hands/Systems/HandsSystem.cs

@@ -33,7 +33,6 @@ namespace Content.Server.Hands.Systems
         [Dependency] private readonly StackSystem _stackSystem = default!;
         [Dependency] private readonly VirtualItemSystem _virtualItemSystem = default!;
         [Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
-        [Dependency] private readonly SharedHandsSystem _handsSystem = default!;
         [Dependency] private readonly SharedTransformSystem _transformSystem = default!;
         [Dependency] private readonly PullingSystem _pullingSystem = default!;
         [Dependency] private readonly ThrowingSystem _throwingSystem = default!;