Cleanup unused/redundant dependencies (#38099)

Content.Server/Shuttles/Systems/ShuttleSystem.cs

@@ -48,7 +48,6 @@ public sealed partial class ShuttleSystem : SharedShuttleSystem
     [Dependency] private readonly DockingSystem _dockSystem = default!;
     [Dependency] private readonly DungeonSystem _dungeon = default!;
     [Dependency] private readonly EntityLookupSystem _lookup = default!;
-    [Dependency] private readonly FixtureSystem _fixtures = default!;
     [Dependency] private readonly MapLoaderSystem _loader = default!;
     [Dependency] private readonly MapSystem _mapSystem = default!;
     [Dependency] private readonly MetaDataSystem _metadata = default!;